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253 results about "Core Particle" patented technology

The nucleosome core particle consists of approximately 146 base pairs (bp) of DNA wrapped in 1.67 left-handed superhelical turns around a histone octamer consisting of 2 copies each of the core histones H2A, H2B, H3, and H4. Core particles are connected by stretches of "linker DNA", which can be up to about 80 bp long.

Inter-core-particle communication control method, device, equipment, medium and product

The invention discloses an inter-core-particle communication control method, device, equipment, medium and product, the method is applied to a wafer-level chip, the wafer-level chip comprises a plurality of core particles, and the method comprises the following steps: determining transmission data and target transmission parameter information of a target receiving end core particle through a sending end core particle, performing transmission judgment on the transmission data, and determining a transmission judgment result; when the transmission judgment result is that transmission can be carried out, transmitting the transmission data to the target receiving end core particle based on the target transmission parameter information, and adjusting the target transmission parameter information; the method comprises the following steps: determining receiving end congestion information through a receiving end core grain according to received transmission data, generating a return message and feeding back the return message to a sending end core grain; and adjusting the to-be-adjusted transmission parameter information according to the return message through the sending end core grain to obtain the adjusted transmission parameter information. Flow control is actively carried out through the core particles at the sending end, the problem of transmission congestion of the core particles is avoided, and therefore the performance advantages of the wafer-level chip are brought into full play.
Owner:SHANGHAI ARTIFICIAL INTELLIGENCE INNOVATION CENT +1

Core particle testing method, system and equipment, storage medium and computer program product

The invention relates to a core particle testing method and system, computer equipment, a storage medium and a computer program product, and is applied to the technical field of chip testing. The method comprises the following steps: acquiring the number of module chips of a to-be-tested core particle; determining at least one test environment component matched with the number of the module chips; the at least one test environment assembly is in one-to-one correspondence with the module chips of the to-be-tested core particles; and running each test environment component in parallel, and testing the corresponding module chip through each test environment component according to a preset test case to obtain a test result of each module chip. By adopting the method, different chip specifications can be adapted, the development cost is saved, the test environment components run in parallel when the core particles are tested, and the test efficiency of the core particles is improved.
Owner:SHENZHEN JAGUAR MICROSYSTEMS CO LTD

Latent heat storage particle, heat exchange material and method for manufacturing latent heat storage particle

A latent heat storage particle that comprises a core particle and a coating part covering at least a part of the surface of the core particle, wherein: the core particle is composed of an element selected from the group consisting of Al, Mg, Si, Ti, Fe, Ni, Cu, Zn, Sn, Sb, Ga, In, Bi, Pb and Cd or an alloy or a compound mainly composed of the same and has a melting point of 100° C. or higher; the coating part is composed of one or more selected from the group consisting of an element different from the component of the core particle, an alloy and an inorganic compound containing the element and a mixture thereof, which does not undergo a chemical reaction with the core particle in the temperature range of the operating temperature; and at least a part of the coating part is in a particulate shape.
Owner:HOKKAIDO UNIVERSITY

3D structure core particle test layout design method supporting cross-level cascade test and single core particle self-test

The invention provides a 3D structure core particle test layout design method supporting cross-layer cascade test and single core particle self-test, and the method comprises the following steps: a, designing the test point layout of 3D stacked core particles, each layer of core particles adopting a hexagonal arrangement mode, and enabling a test PIN in one layer to be connected with six signal PINs in the same layer; and meanwhile, a vertical test channel is arranged, so that the in-layer test PIN of each layer is connected with the corresponding test PIN of the adjacent layer through a vertical interconnection structure. According to the invention, full test coverage of 3D stacking is adapted, the problem that interlayer signals are difficult to test in a 3D structure is solved through the in-layer hexagonal layout and the vertical test channel, and full-scene coverage of in-layer, interlayer and cross-core particle signals is realized.
Owner:CHINA ELECTRONICS STANDARDIZATION INST +1

Method for preparing ceramsite sand fracturing propping agent by taking asbestos ore as raw material

The invention relates to the technical field of fracturing propping agents, in particular to a method for preparing a ceramsite sand fracturing propping agent by taking asbestos ore as a raw material. The ceramsite sand fracturing propping agent comprises inner core particles and an outer layer covering film, wherein the inner core particles comprise the following components in parts by weight: 25-35 parts of asbestos ore, 40-50 parts of bauxite, 10-20 parts of solid waste ceramsite sand, 1-3 parts of a sintering aid, 15-25 parts of potassium feldspar, 3-8 parts of dolomite, 8-12 parts of kaolin, 1-2 parts of titanium oxide and 0.5-1.5 parts of manganese powder; and the outer-layer covering film is modified epoxy resin. The ceramsite sand fracturing propping agent prepared by the invention not only has excellent mechanical property and high flow conductivity, but also has excellent hydrophobic property, so that the service life of the ceramsite sand fracturing propping agent is prolonged.
Owner:TONGCHUAN HENGSHENG TECH MATERIALS CO LTD

Self-suspending proppant and preparation method thereof

The invention discloses a self-suspending proppant and a preparation method thereof, and relates to the technical field of oil and gas field fracturing exploitation, the method comprises the following steps: S1, preparing modified core particles; step S2, preparing coated particles; and S3, preparing the self-suspending proppant. The self-suspending proppant prepared by introducing a silane coupling agent, a hydrophobic monomer and a sulfonic group-containing monomer and coating acrylamide polymer films with different functions in a double-layer manner mainly comprises modified inner core particles, an outer coating layer 1 and an outer coating layer 2, the self-suspension proppant has the advantages of being stable in structure, good in self-suspension capacity, high in shear resistance, capable of still keeping suspension after being washed for multiple times and the like.
Owner:PETROCHINA CO LTD

Data transmission method between core particles, chip, medium and program product

The invention provides a data transmission method between core particles, which is applied to a first core particle and comprises the following steps: encrypting plaintext data to obtain ciphertext data; and sending the ciphertext data to a second core grain. The invention further provides a data transmission method applied to the second core particle, a chip, a computer readable medium and a computer program product.
Owner:SANECHIPS TECH CO LTD

Preparation method of composite slow-release carbon source

The invention discloses a preparation method of a composite slow-release carbon source, which comprises the following steps: preparing an inner core: uniformly dry-mixing lignin powder and a quick-acting carbon source, and adding a first binder to prepare inner core particles; middle layer wrapping: alternately spraying a second binder and middle layer coating powder until the middle layer is completely wrapped to obtain double-layer particles; outer layer wrapping: alternately spraying a third binder and outer layer coating powder until the outer layer is completely wrapped to obtain three layers of particles; and spraying a biodegradable polymer solution on the surfaces of the three layers of particles to form a coating film. Through the three-layer structural design of the quick start layer, the stable maintenance layer and the long-acting guarantee layer, accurate matching of carbon source release and microbial metabolism requirements is realized. The outer-layer quick-acting carbon source quickly starts microbial activity, the middle layer provides stable and continuous carbon source supply, and the inner core ensures the tail-section treatment effect. The sequential release mechanism effectively avoids burst release waste of the carbon source, so that the utilization rate of the carbon source is greatly improved.
Owner:JURONG DEEPWATER WATER CO LTD +2

Preparation method of magnesium-calcium refractory aggregate with core-shell structure

PendingCN120289168APhysical chemistryDolomite
The invention discloses a preparation method of magnesium-calcium refractory aggregate with a core-shell structure, which comprises the following steps: granulating dolomite powder to form core particles, and uniformly adhering magnesium source powder to the core particles to form precursor particles with a double-layer structure; the adding amount of the magnesium source powder is controlled according to the mass ratio of the content of MgO in the magnesium source powder to the content of MgCa (CO3) 2 in the dolomite powder being (5-30): 100; and finally, heating and sintering the dried product of the precursor particles at the heating rate of 5 DEG C / min, and preserving heat to obtain the magnesium-calcium refractory aggregate with the core-shell structure. The method has the advantages of easily available raw materials and low production cost; the process is simple and suitable for large-scale production; the product is high in hydration resistance, high in refractoriness, excellent in slag corrosion resistance and wide in market prospect.
Owner:NORTHEASTERN UNIV CHINA

Method for stacking chip particles on wafer and semiconductor device

The invention provides a method for stacking core particles on a wafer and a semiconductor device. The method comprises the following steps of: S1, arranging the wafer in a laminating device in a manner that one surface with a circuit pattern structure faces downwards; s2, absorbing the upper surface of a wafer from top to bottom by using a wafer absorbing device, and placing the wafer in the laminating device in a manner that one surface with a circuit pattern structure faces upwards; and S3, carrying out bonding by taking the direction from bottom to top as the bonding direction from the wafer to the wafer, and completing the stacking of the core particles on the wafer. According to the invention, particle pollution introduced by intermediate processes (such as cutting, picking, overturning and the like of a chip) in processing engineering is avoided, so that the technical problems of bonding strength reduction and bonding electrical failure are greatly avoided.
Owner:BEIJING XINLI TECH INNOVATION CENT CO LTD

Core particle type selection method

The invention provides a core particle type selection method, which comprises the following steps: S1, acquiring a core particle library in a data form constructed according to a specified core particle library specification, the core particle library containing a plurality of core particles and description files thereof; s2, obtaining a to-be-accelerated application, obtaining the application, and converting the application into a task data flow diagram by using a semantic matching rule, the task data flow diagram comprising operators and dependency relationships thereof; s3, according to the core particle library and the task data flow diagram, performing multiple times of grouping mapping for each core particle combination based on the multiple core particle combinations, calculating performance indexes of each task grouping mapping scheme, and determining an optimal core particle combination according to the performance indexes of the task grouping mapping schemes, the task grouping mapping scheme comprises a plurality of mapping relations, and each mapping relation comprises an operator in an application, a grouping serial number of the operator and an operation core grain distributed for the operator. According to the method, the model selection efficiency and quality of the core particle integration system can be improved, and the time overhead and cost of manual model selection are reduced.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Chip verification method, system and device and storage medium

The embodiment of the invention provides a chip verification method, system and device and a storage medium, a chip comprises a core particle group, the core particle group is formed by coupling a plurality of core particles, and the method comprises the following steps: based on a core particle verification environment, performing a verification test on a to-be-tested designed core particle; after the core particles pass the verification test, a core particle group verification environment is generated, the core particle group verification environment comprises a plurality of core particle verification sub-environments, and the core particle verification sub-environments are obtained based on instantiation of the core particle verification environment; and based on the core particle group verification environment, carrying out verification test on a to-be-tested designed core particle group. According to the chip verification method in the embodiment of the invention, complete verification of the core particle group can be realized.
Owner:HYGON INFORMATION TECH CO LTD

Windowing heat dissipation structure of ABF carrier plate on PCB and process method

The invention discloses a windowing heat dissipation structure of an ABF carrier plate on a PCB and a process method, and belongs to the field of integrated circuit packaging processes, the windowing heat dissipation structure comprises an ABF carrier plate, the front surface of the ABF carrier plate is connected with a first core particle through a copper column bump, the back surface of the ABF carrier plate is connected with a second core particle through a copper column bump, a redistribution layer is arranged between the copper column bumps, and the first core particle is connected with a second core particle through a copper column bump. The first core particle and the second core particle are connected through a redistribution layer in the copper column protruding block. A plurality of solder balls are arranged on the two sides of the back face of the ABF carrier plate, the back face of the ABF carrier plate is connected with a windowing PCB through the solder balls, and the second core particles leak out of the windowing position of the windowing PCB, so that the second core particles leak out of a window body and are directly exposed in the external environment; according to the invention, the limitation of a traditional closed structure on heat dissipation is broken through, so that heat can be dissipated into surrounding air more quickly, the heat dissipation efficiency of the core particle II is remarkably enhanced, and the working temperature of the core particle II can be effectively reduced.
Owner:XIAN MICROELECTRONICS TECH INST

Connection point arrangement method for core particle interface and core particle system

The invention provides a connection point arrangement method for core particle interfaces and a core particle system.The method comprises the steps that a core particle boundary and the total number M of groups to be arranged are obtained, the core particle boundary represents an area where connection points on core particles can be arranged, and the total number of groups is the sum of the number of groups of all parallel interfaces of the core particles; dividing a plurality of non-overlapping grouping exclusive areas N in the boundary of the core particles according to the total number M of groups, N being greater than or equal to M; a corresponding packet exclusive area is matched for each packet, connection points of the corresponding packet are arranged in each packet exclusive area, and the connection points of each packet comprise data connection points and redundant connection points; according to the method, the connection points of the same group are arranged in a more concentrated manner, so that concentrated faults appear in the same group with a higher probability, and the fault-tolerant capability of the parallel interface is improved.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Reconfigurable chip system, reconfiguration method thereof and electronic equipment

The embodiment of the invention provides a reconfigurable chip system and a reconfiguration method thereof, and electronic equipment. The reconfigurable chip system comprises a substrate; the one or more chips are arranged on the substrate and are interconnected through the substrate; wherein a first type of core particles and a second type of core particles are integrated in at least part of the chips, and the first type of core particles are different from the second type of core particles; the plurality of mode controllers are respectively arranged in the first type of core particles and the second type of core particles, and are configured to dynamically start or disable the first type of core particles and / or the second type of core particles in response to a mode configuration instruction written into the mode controllers through a bus, the bus connects the first type of core particles and the second type of core particles. By adopting the technical scheme, the first type of core particles and / or the second type of core particles can be dynamically enabled or disabled, so that the chip shows different characteristics.
Owner:芯来智融半导体科技(上海)股份有限公司

Silver-coated copper powder, electroconductive resin composition containing same, and method for producing same

This silver-coated copper powder is composed of aggregates of silver-coated copper particles each comprising a copper core particle and a silver coat layer disposed on at least some of the surface of the core particle. When the number of copper crystal grains per the silver-coated copper particle determined by examining cross sections of the silver-coated copper particles by an electron beam backscatter diffraction method is expressed by N (grains), the BET specific surface area is expressed by SSA (m2 / g), and the volume-cumulative particle diameter at 50% volume-cumulation determined by a laser diffraction / scattering particle size distribution examination is expressed by D50 (μm), then a value defined by N / (SSA×D50) is 0.3 (grains / {(m2 / g)×(μm)}) to 5.0 (grains / {(m2 / g)×(μm)\}) inclusive.
Owner:MITSUI MINING & SMELTING CO LTD

Preparation method of core-shell structure hard alloy with high strength and high toughness

PendingCN121915283ACrazingCemented carbide
The invention discloses a preparation method of a core-shell structure hard alloy with high strength and high toughness, and belongs to the technical field of hard alloys and powder metallurgy. According to the preparation method, a micro heterostructure is formed after sintering through a pre-constructed'fine grain hard core-coarse grain tough shell 'powder system, and deflection and energy dissipation are promoted during crack propagation by utilizing the performance difference and interfacial effect between the core and a matrix, so that the strength and toughness of the material are synergistically improved. The method is simple in process and low in cost, the material performance can be flexibly designed by adjusting the core particle size, the core-shell components and the core-shell proportion, and the method is suitable for tools, drilling tools, wear-resistant parts and the like with strict requirements for obdurability.
Owner:BEIJING UNIV OF TECH

Electrical test device and electrical test method for silicon substrate chip

The invention relates to an electrical property testing device and an electrical property testing method of a silicon substrate chip. The device comprises a wafer-level chip to be tested and a test platform, the wafer-level chip to be tested comprises a plurality of core particles and a plurality of test areas; the core particles are connected based on interconnection lines; a metal interconnection structure is pre-buried on the core particle; each test area covers the crossed area of the four core particles; the crossed region comprises a part of metal interconnection structure; and the test platform is used for controlling the probe card to be in contact with the metal interconnection structures in the test areas to carry out an electrical test on the wafer-level chip to be tested. According to the electrical property testing device, a wafer level interconnection electrical property testing method based on a window translation mode can be realized, and a whole set of testing solution which can cover the whole wafer, can be reused and can be traced is designed aiming at the reliability problem of a cross-region interconnection structure in a large-scale photomask splicing process.
Owner:SEMICON TECH INNOVATION CENT(BEIJING) CORP +1

Modified polymers and their use in coating compositions

PCT designated stageWO2025261524A1CoatingsPolymer scienceThermosensitive polymer
Disclosed is a modified polymer obtained by enclosing and / or grafting a non-thermosensitive polymer particle with a thermosensitive polymer, the modified polymer has a viscosity exhibiting a significant change at 40 to 90℃. Also disclosed is a polymer having a core-shell structure, wherein the core particle consists essentially of a non-thermosensitive polymer, and the shell is located on the outer surface of the core particle and consists essentially of a segment derived from a thermosensitive polymer, the polymer has a viscosity exhibiting a significant change at 40 to 90℃. Further disclosed is a method for preparing an aqueous dispersion of polymer. Still further disclosed is a coating composition comprising the above modified polymer, the above polymer, or the above aqueous dispersion of polymer, a substrate coated with the coating composition, as well as use of the modified polymer, the polymer, or the aqueous dispersion of polymer.
Owner:PPG COATINGS TIANJIN

Perovskite quantum dot composite material, ink and method for manufacturing perovskite quantum dot composite material

A method for manufacturing a perovskite quantum dot composite material that easily forms core-shell particles through a one-stage synthesis step is provided, along with the perovskite quantum dot composite material and an ink containing the perovskite quantum dot composite material. This perovskite quantum dot composite material suppresses surface defects of the perovskite quantum dots by forming an ionic crystal layer comprising halides in the shell layer and exhibits a very high PLQY (Power Level Quality). The perovskite quantum dot composite material comprises core particles and a shell layer surrounding the core particles. The core particles are composed of metal halide perovskites, and the shell layer comprises an organic halide compound with an ionic crystal structure having the same halogen composition as the core particles. The PLQY is greater than 75%, and the change in emission wavelength is less than 5 nm over a period of 10,000 minutes at room temperature.
Owner:ISE CHEM IND +1

Manufacturing method of three-dimensional system chip

PendingCN121646387AWaferInterconnection
The invention discloses a manufacturing method of a three-dimensional system chip, and the method comprises the steps: providing a first wafer which comprises first core particles; providing a second core particle; manufacturing an interconnection patch cord, wherein the interconnection patch cord is used for interconnecting the electrodes in the same first core particle and / or the electrodes among different first core particles; a bonding layer is formed on the first wafer and the second core particle, and the bonding layer exposes a partial region of the electrode or the patch cord to serve as an I / O interconnection electrode; bonding the first wafer and the second chip particle by using a bonding layer, wherein the I / O interconnection electrodes of the first wafer and the second chip particle are opposite to each other; and depositing metal on the I / O interconnection electrodes of the first wafer and the second wafer until interconnection is formed. And three-dimensional system physical integration of a plurality of heterogeneous and heterogeneous core particles is realized so as to complete electrical interconnection among all the core particles required by a system chip.
Owner:上海曜感科技有限公司

Conductive stannic oxide particle-containing organic solvent-dispersed sol and method of production thereof

A modified metal oxide particle sol, when applied as a coating onto a substrate, is capable of having transparency, a high particle refractive index and good coat resistivity. The modified metal oxide particle sol is composed of modified metal oxide particles (iii) in which stannic oxide particles (i) having an average primary particle size of 4 to 50 nm serve as cores and are coated with metal oxide particles (ii) of at least one metal oxide selected from the group consisting of antimony oxide, stannic oxide and silicon oxide and having an average primary particle size of 1 to 10 nm, which modified metal oxide particles (iii) are dispersed in an organic solvent. The average primary particle size of the core particles (i) and the average primary particle size of the coating particles (ii) satisfy the relationshipsize of core particles(i)≥size of coating particles(ii),the ratio (total weight of metal oxides other than stannic oxide) / (weight of stannic oxide) is from 0.005 to 1.0, and the sol includes an amine (a) having a water solubility of 0.1 g / L or more and an amine (b) having a water solubility of less than 0.1 g / L.
Owner:NISSAN CHEM CORP

Heat storage resistor

This heat storage resistor comprises latent heat storage particles and a solid medium, and has an electric resistivity within the range of 1 × 10-7 to 3 × 103 Ω·cm, wherein: the latent heat storage particles each have a core particle and a coating part that covers at least part of the surface of the core particle; the core particle has, as a component thereof, a certain element or the like, and has a melting point of 100°C or higher; and the coating part has, as a component thereof, an element or the like that is different from the component of the core particle, does not cause chemical reaction with the core particle in an operation temperature range, and has an electric resistivity within the range of 1 × 10-7 to 3 × 103Ω·cm.
Owner:HOKKAIDO UNIVERSITY

Toner particle with core particle and fine particles

A toner particle includes a core particle including a binder resin, and a plurality of fine particles that are smaller than the core particle and that are attached to a surface of the core particle. The fine particles include silica fine particles, and inorganic fine particles having a band gap energy of 2.5 to 7.0 eV and a relative permittivity of 30 to 100. The toner particle has a content of titanium dioxide of less than 1% by mass.
Owner:HEWLETT PACKARD DEVELOPMENT COMPANY LP

A method for preparing diamond rare earth europium color center particles

This invention discloses a method for preparing diamond rare-earth europium (EEUR) color core particles, belonging to the field of non-metallic element materials. The method involves coating a europium oxide suspension onto a single polished silicon wafer, followed by microwave plasma chemical vapor deposition (CPCVD) to form EEUR color core particles. This method allows for the growth of EEUR color core particles on the surface of a diamond film. The absence of obvious traces of Eu₂O₃ nanoparticles on the surface of the EEUR color core particles indicates that the diamond implantation solution within the europium oxide particles rapidly forms the EEUR color core particles during CPCVD, resulting in the diamond core ultimately covering the europium oxide particles, thus forming a core-shell structure, i.e., the diamond rare-earth europium color core particles. The obtained EEUR color core particles are mostly irregularly shaped with a diameter of approximately 8 μm.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Fine granule and preparation method therefor

The present invention relates to the field of pharmaceutical formulations, and in particular to a fine granule and a preparation method therefor. The provided fine granule is a fine granule having core particles, a coating layer and an additional material layer. Hydroxypropyl cellulose and / or hydroxypropyl methylcellulose in a specific proportion are selected as a tackifier, and low-substituted hydroxypropyl cellulose is used as a disintegrating agent, so that the prepared fine granule has good particle compactness, disintegration performance and dissolution performance. An anti-adherent is homogenized during the preparation of the coating layer material, so that the prepared coating layer material has good anti-adhesion effect, and does not adhere in the particle coating process, thereby ensuring the integrity of the particles. A fluidized granulation coating machine is selected for preparation and coating of the core particles, thereby ensuring more uniform particle size distribution of the fine granule.
Owner:CHANGSHA JINGYI PHARM TECH CO LTD

Process layer management and display method supporting multi-chip stacking design

A process layer management and display method supporting multi-chip stacking design comprises the following steps: analyzing a layout file, generating a process layer list and a core particle list of all core particles, and distributing a corresponding shadow layer for each core particle; the shadow layer comprises a layer number and a layer name of the process layer, and a definition for controlling visible, selectable and color display of the core particles or the process layer; searching all core particles containing corresponding process layers from the core particle list and the process layer list according to input layer numbers and layer names, and performing highlight display; when the editing area is switched, the process layer of the target core particle is set to be in an active state in the process layer list; and storing the editing operation data of the process layer in the current active state into an independent layout file. An independent shadow layer is bound for each core particle, and the number and the name of the original process layer are reused, so that the correct editing behavior is ensured; the core particles and all process layers in the core particles are managed and displayed through coarse and fine granularity, so that the management and display problems of cross layers among different processes are solved.
Owner:SHANGHAI HUADA JIUTIAN INFORMATION TECH CO LTD

Toner for development of electrostatic latent images

Toner for development of electrostatic latent images has a toner particle including a toner core particle and a shell layer that coats it. The toner core particle includes, at least, a binder resin and a colorant. The toner core particle contains as the binder resin a particular polyester resin having a repeating unit derived from 1,2-propanediol. The shell layer contains a alcoholic hydroxy group containing resin having one or more types of repeating unit having an alcoholic hydroxy group. The proportion of an alcoholic hydroxy group containing monomer in the alcoholic hydroxy group containing resin is 1 mass % or more. The coverage ratio of the surface of the toner core particle with the shell layer is 75% or more.
Owner:KYOCERA DOCUMENT SOLUTIONS INC

Two component developer

To provide a two component developer having stable transfer characteristics and positive chargeability and having excellent drum cleaning property.SOLUTION: The two component developer includes: a positively chargeable toner including: a toner mother particle including a toner core and a shell layer formed from a resin containing an acrylic resin; and an external additive adhering to a surface of the toner mother particle; and a carrier having a surface coated with a resin coating layer containing a silicone resin. The external additive includes silicone-modified acryl resin particles having a volume-average particle size of at least 40nm and no greater than 140nm. When the toner is subjected to an ultrasonic treatment in which ultrasonic vibration at a power of 100W and a frequency of 28kHz is applied for 1 minute in an aqueous dispersion liquid containing the toner and a nonionic surface active agent, the amount of the silicone-modified acryl resin particles detached and liberated from the toner base particles is 0.35 mass% or less with respect to the adhesion amount of the silicone-modified acryl resin particles before the ultrasonic treatment.SELECTED DRAWING: Figure 1
Owner:KYOCERA DOCUMENT SOLUTIONS INC