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339 results about "Recording layer" patented technology

Media underlayer structure for heat-assisted magnetic recording and media fabrication methods therefor

Various apparatuses, systems, methods, and media are disclosed for heat-assisted magnetic recording (HAMR) that includes a HAMR medium with a seed-thermal barrier structure. The seed-thermal barrier structure is positioned between a heat sink layer and a magnetic recording layer. In some examples, the seed-thermal barrier structure has a first layer including MgOTiO (MTO), a second layer including TiN on the first layer, a third layer on the second layer, and a fourth layer including MTO on the third layer. The third layer, in some examples, includes at least one of: RuAl, Pt, PtZr, PtTa, Rh, FePt, CrMo, or Cr.
Owner:WESTERN DIGITAL TECHNOLOGIES INC

Bot detection in an edge network using transport layer security (TLS) fingerprint

This disclosure describes a technique to fingerprint TLS connection information to facilitate bot detection. The notion is referred to herein as “TLS fingerprinting.” Preferably, TLS fingerprinting herein comprises combining different parameters from the initial “Hello” packet send by the client. In one embodiment, the different parameters from the Hello packet that are to create the fingerprint (the “TLS signature”) are: record layer version, client version, ordered TLS extensions, ordered cipher list, ordered elliptic curve list, and ordered signature algorithms list. Preferably, the edge server persists the TLS signature for the duration of a session.
Owner:AKAMAI TECHNOLOGIES INC

Lithographic printing plate precursor and method of use

IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR radiation-sensitive composition in an infrared radiation-sensitive image-recording layer. This IR radiation-sensitive composition includes: (1) a free radical initiator composition that comprises an electron-donating agent; (2) a free radically polymerizable composition; and (3) a color-changing compound that is represented by the Structure (I) having a conjugated carbon chain between the aromatic terminal groups. The compound also has a —SO2—R3 group wherein R3 represents alkyl, aryl or heteroaryl groups. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed off-press or on-press.
Owner:EASTMAN KODAK CO

Lithographic printing plate precursor and method of use

IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR-sensitive image-recording layer. The IR radiation-sensitive layer includes: (1) a free radical initiator composition with an electron-donating agent and one or more iodonium cations; (2) a free radically polymerizable composition; and (3) a color-changing compound of Structure (I) having an indene ring in the conjugated chain between the aromatic terminal groups. The IR radiation-sensitive composition and layer also contains one or more borate ions such that the molar ratio of one or more borate ions to the one or more iodonium ions is at least 0.5:1. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed on-press.
Owner:EASTMAN KODAK CO

Thermosensitive recording medium

ActiveUS12246549B2ArylPlasticizer
Provided is a thermosensitive recording medium being excellent in oil resistance among various performances required for the thermosensitive recording medium, and being further excellent in heat resistance, plasticizer resistance, and printing (recording) run-ability.That is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains at least two kinds of urea compounds. The two kinds of urea compounds comprise the first urea compound being represented by the following general formula 1, and the second urea compound being represented by the following general formula 2.wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group,wherein R4 to R8 represent a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, and the like, and m represents an integer of 0 to 2.
Owner:NIPPON PAPER IND CO LTD

Map layer data processing method and system based on GIS coordinate generation and electronic equipment

The invention discloses a map layer data processing method and system based on generation of GIS coordinates. The method comprises the steps that an API service calling request from a user side is received; calling an API (Application Program Interface) based on a data type requested to be called and a service demand, querying layer data recorded in a database, and executing transmission of the layer data; wherein the API comprises an API uplink interface and an API downlink interface; receiving an API service calling request of a user side through an API uplink interface, and querying and recording layer data in the calling process; uploading layer data recorded in the database to a map tool service through an API downlink interface, creating and initializing a map tool object, and calling a render function in the map tool object to draw a map layer; automatically generating map layer data and displaying the map layer data on an interactive interface; and outputting a map picture in a target format based on the label data and the style of the map layer set by the user side through the interface. According to the scheme, user requirements can be quickly responded, and the map picture generation efficiency is improved.
Owner:SHANGHAI YUANQING INFORMATION TECH CO LTD

Magnetoresistance effect element and integrated circuit

PCT designated stageWO2025205890A1Recording layerElectric current flow
Provided are a magnetoresistance effect element capable of inverting the magnetization of a recording layer by a small current, and an integrated circuit using the same. A magnetoresistance effect element 1 includes a layer 11 including Ru and O, a metal layer 12 provided adjacent to the layer 11 including Ru and O, a recording layer 13 including a magnetic body provided adjacent to the metal layer 12, a barrier layer 14, and a reference layer 15, the metal layer 12 including one or more metals selected from the group consisting of Pt, W, Ta, Ti, Cr, and V. The integrated circuit is composed of a plurality of magnetoresistance effect elements 1.
Owner:TOHOKU UNIV

Neuromorphic device

A neuromorphic device includes a plurality of paired elements and a control device that controls each of the plurality of paired elements. Each of the plurality of paired elements includes a first magnetoresistance effect element, a second magnetoresistance effect element, and a readout electrode shared by the first magnetoresistance effect element and the second magnetoresistance effect element. Each of the first magnetoresistance effect element and the second magnetoresistance effect element includes a reference layer, a magnetic recording layer, a non-magnetic layer, and two electrodes. The readout electrode is connected across the reference layers of the first magnetoresistance effect element and the second magnetoresistance effect element. The control device reverses a direction in which a read current flows between the first magnetoresistance effect element and the second magnetoresistance effect element in a specific paired element from which a signal is read.
Owner:TDK CORP

Heat-sensitive recording material

Disclosed is a heat-sensitive recording material comprising at least an undercoat layer and a heat-sensitive recording layer in this order on a support,the undercoat layer containing an inorganic pigment, hollow particles, and a binder,the heat-sensitive recording layer containing a leuco dye, developers, and a binder,the heat-sensitive recording layer containing a first developer and a second developer as the developers,the heat-sensitive recording layer containing an N,N′-diarylurea-based compound represented by formula (1) as the second developer:whereinR2 represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group, the aralkyl group and aryl group may be substituted with a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom, and a plurality of R2s may be the same or different; andA1 represents a hydrogen atom or a C1-4 alkyl group, and a plurality of A1s may be the same or different.
Owner:OJI HLDG CORP

Multi-focal near-to-eye display holographic optical element and preparation method and device thereof

The invention discloses a multi-focal near-to-eye display holographic optical element and a preparation method and device thereof. The element adopts a composite structure of a substrate, a multi-focal correction layer and a holographic recording layer, a holographic grating accurately matched with each optical partition of the correction layer is formed in the recording layer through a partition exposure technology, and multi-depth virtual image display and user refraction correction functions can be realized at the same time. The preparation device comprises a coherent light source, a beam splitter, a diffusion plate, a focal plane displacement system, a mask component and a master controller, and partition exposure is realized through cooperative control. The problem that traditional near-to-eye display cannot meet multi-focus display and refraction correction at the same time is solved, a user can clearly perceive fused multi-depth virtual information and a real environment without additionally wearing glasses, the visual comfort and experience are remarkably improved, and the method is suitable for AR / VR and other head-mounted display devices.
Owner:SHANGDA UNIVERSAL INTELLIGENT ROBOT RESEARCH INSTITUTE BAOSHAN DISTRICT SHANGHAI

Super-multilayer optical storage read-write and servo device and method based on liquid lens

PendingCN119601048AHigh response frequencyquick responseRecord information storageDisposition/mounting of headsLiquid stateLight beam
The invention discloses a super-multilayer optical storage read-write and servo device and method based on a liquid lens. The super-multilayer optical storage read-write and servo device comprises a read-write module, a liquid objective lens, a liquid collimating lens, a servo module and an optical storage medium with an independent servo guide layer. The optical system is used for adjusting the focal length of the liquid objective lens and the focal length of the liquid collimating lens, so that writing or reading light beams emitted by the read-write module can be converged to different recording layers of the optical storage medium through the liquid objective lens, and data writing or reading of the optical storage medium is carried out. Servo light beams emitted by the servo module pass through the liquid collimating mirror and the liquid objective lens and then can be always converged on the independent servo guide layer of the optical storage medium. The liquid objective lens and the liquid collimating lens are arranged, and the focal lengths of the liquid objective lens and the liquid collimating lens are regulated and controlled by external voltage, so that modulation at extremely high response frequency can be realized, the device has the advantage of high response speed, and a servo light beam can be always focused on the surface of the independent servo guide layer under the condition that the thickness of an optical storage medium is not uniform.
Owner:CHINA HUALU GRP

Systems and methods to generate units of work in a collaboration environment

Systems and methods for generating units of work in a collaboration environment are disclosed. Exemplary implementations may: manage environment state information including work units records describing units of work assigned to individual users within the collaboration environment, individual sets of work unit records being defined by a record hierarchy, individual units of work including one or more digital content items; obtain user input information conveying user input on, or relating to, individual digital content items of the individual units of work; generate one or more work unit records based on the user input information, such that responsive to the user input information conveying first user input by a first user on, or relating to, a first digital content item, generate a second work unit record describing a second unit of work, the second work unit record being subordinate to a first work unit record; and / or perform other operations.
Owner:ASANA INC

Graphically Representing Related Record Families Using a Phantom Parent Node

Embodiments use a phantom apex node to graphically illustrate a plurality of hierarchical records. Each record includes a parent field, and an entry in the parent field identifies a parent record of a given record. The parent record is higher in hierarchy than the given record. Embodiments identify record(s) that have no entry in the parent field. A phantom apex record is added to the database. A reference to the phantom apex record is inserted for each record that did not have an entry in the parent field. An x-y coordinate position is determined for all hierarchical records based on the parent field in each record. Once the positions are determined, all references to the phantom apex record are removed from all of the parent fields, and the phantom apex record itself is removed from the database. The plurality of records are then graphically rendered on a target output medium.
Owner:KILPATRICK TOWNSEND & STOCKTON LLP

Heat-sensitive recording material

Disclosed is a heat-sensitive recording material comprising at least an undercoat layer and a heat-sensitive recording layer in this order on a support, the undercoat layer containing an inorganic pigment, hollow particles, and a binder, the heat-sensitive recording layer containing a leuco dye, developers, and a binder, the heat-sensitive recording layer containing a first developer and a second developer as the developers, the heat-sensitive recording layer containing an N,N'-diarylurea-based compound represented by formula (1) as the second developer: wherein R2 represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group, the aralkyl group and aryl group may be substituted with a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom, and a plurality of R2s may be the same or different; and A1 represents a hydrogen atom or a C1-4 alkyl group, and a plurality of A1s may be the same or different.
Owner:OJI HLDG CORP

Thermosensitive recording medium for linerless label

A thermosensitive recording medium for a linerless label is provided. The thermosensitive recording medium includes a support, a thermosensitive recording layer, a protective layer, and a release layer. The release layer includes at least one selected from the group consisting of epichlorohydrin, polyamide epichlorohydrin, an oxazoline derivative, hydrazine, and a hydrazide derivative. The thermosensitive recording layer, the protective layer, and the release layer are disposed on one side of the support.
Owner:RICOH CO LTD

On-press development-type planographic printing plate precursor, planographic printing plate production method, and planographic printing metho

PCT designated stage expiredWO2025013922A1Plate printingOther printing apparatusArylPolymer science
The present invention pertains to: an on-press development-type planographic printing plate precursor which has a support and an image recording layer on the support, and in which the image recording layer contains an electron acceptor-type polymerization initiator and two or more electron donor-type polymerization initiators, the two or more electron donor-type polymerization initiators are borate compounds, and at least one thereof is a borate compound represented by formula (1); and an application of the on-press development-type planographic printing plate precursor. In formula (1), R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 each independently may have a ring structure. However, at least one of R1, R2, R3, and R4 is different from the others. M+ represents a cation.
Owner:FUJIFILM CORP

On-press development type planographic printing plate original plate, method for producing planographic printing plate, planographic printing method, and compound

This on-press development type planographic printing plate original plate includes a support body and an image recording layer on the support body, wherein the image recording layer includes (1) or (2). (1) A borate compound represented by formula (1), and an electron-accepting polymerization initiator. (2) A borate compound represented by formula (1a). In formula (1) and formula (1a), R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 each independently may have a ring structure. However, at least one of R1, R2, R3, and R4 differs from the others. M+ represents a cation. Ma+ represents an iodonium cation.
Owner:FUJIFILM CORP

Optical storage medium and related method and device thereof

ActiveCN119339745ARecord information storageGrooves/tracks dimensionsComputer hardwareOptical storage
The invention provides an optical storage medium and a related method and device thereof. The optical storage medium includes a first swing trench layer and a plurality of first recording layers between a first surface and a second surface. Each first recording layer is located between the first swing trench layer and the first surface. The first swing groove layer comprises a plurality of first sectors, each first sector carries first address information, and the first address information comprises first surface number information and first layer inner address information. Each recording layer comprises a plurality of second sectors, the position of each second sector corresponds to the position of one first sector, each second sector carries second address information, and the second address information comprises first layer number information and second layer inner address information. Therefore, the data can be read and written accurately and quickly, so that the structure of the optical storage medium can be simplified, and the manufacturing difficulty and cost are reduced. Therefore, more recording layers can be arranged in the optical storage medium, and the storage capacity of the optical storage medium is improved.
Owner:HUAWEI TECH CO LTD

On-press development type lithographic printing plate precursor, method of preparing lithographic printing plate, lithographic printing method, and compound

There is provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer provided on the support, in which the image-recording layer contains (1) or (2).(1) a borate compound represented by Formula (1) and an electron-accepting polymerization initiator(2) a borate compound represented by Formula (1a)in Formula (1) and Formula (1a), R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 may each independently have a ring structure. Provided that at least one of R1, R2, R3, or R4 is different from the other. M+ represents a cation. Ma+ represents an iodonium cation.
Owner:FUJIFILM CORP

Media underlayer structure for heat-assisted magnetic recording and media fabrication methods therefor

Various apparatuses, systems, methods, and media are disclosed for heat-assisted magnetic recording (HAMR) that includes a HAMR medium with a seed-thermal barrier structure. The seed-thermal barrier structure is positioned between a heat sink layer and a magnetic recording layer. In some examples, the seed-thermal barrier structure has a first layer including MgOTiO (MTO), a second layer including TiN on the first layer, a third layer on the second layer, and a fourth layer including MTO on the third layer. The third layer, in some examples, includes at least one of: RuAl, Pt, PtZr, PtTa, Rh, FePt, CrMo, or Cr.
Owner:WESTERN DIGITAL TECHNOLOGIES INC

Heat-sensitive recording medium

Disclosed is a heat-sensitive recording material having a heat-sensitive recording layer containing a leuco dye, a developer, and an adhesive on a support body, in which the heat-sensitive recording material is characterized by containing an olefin-acrylic copolymer salt and a styrene-butadiene latex as the adhesive, and in which the amount of the olefin-acrylic copolymer salt is less than the amount of the styrene-butadiene latex. The present invention relates to a liquid crystal composition comprising a liquid crystal compound selected from the group consisting of a compound represented by general formula (1) (in formula (1): R each represents a C1-12 alkyl group, a C7-12 aralkyl group, or a C6-12 aryl group, the aralkyl group and the aryl group may be substituted by a C1-12 alkyl group, a C1-12 alkoxy group, a C6-12 aryl group, or a halogen atom, and a plurality of R may be the same or different; and each A1 represents a hydrogen atom or a C1-4 alkyl group, and a plurality of A1 may be the same or different. ) is represented by formula (1). The N, N '-diarylurea compound is represented by general formula (2) (in formula (2), R1 to R5 may be the same as or different from each other; compounds represented by general formula (3) and each represents a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a monoalkylamino group, a dialkylamino group or an arylamino group. And at least one non-phenolic color-developing agent selected from the group consisting of the compounds represented by the formula (1) is used as a color-developing agent. # imgabs0 # # imgabs1 # # imgabs2 #
Owner:OJI HLDG CORP

Disk device and electronic device

ActiveCN115116483BElectrical connection between head and armAccessories for auxillary signalsComputer hardwareDisks (device)
Embodiments of the present invention relate to a disk device and an electronic device. The disk device includes a housing, a disk-shaped recording medium, a magnetic head, an internal wireless communication device, and internal components. The housing has a storage space provided therein. The recording medium is stored in the storage space and has a recording layer. The magnetic head is stored in the storage space and is configured to read and write information with respect to the recording medium. The internal wireless communication device performs at least one of the following operations: generating an electrical signal of information written by the magnetic head to the recording medium corresponding to light, a magnetic field, or an electric field generated by an external wireless communication device; and generating light, a magnetic field, or an electric field corresponding to the electrical signal of information read by the magnetic head from the recording medium toward the external wireless communication device. The internal components are stored in the storage space, are electrically connected to the magnetic head, and communicate with external components outside the housing through the internal wireless communication device and the external wireless communication device.
Owner:KK TOSHIBA +1

Magnetic recording medium and magnetic storage apparatus

A magnetic recording medium includes a nonmagnetic substrate, an underlayer disposed above the nonmagnetic substrate, and a magnetic recording layer disposed above the underlayer. The magnetic recording layer includes a first magnetic layer disposed above the underlayer, and a second magnetic layer disposed above the first magnetic layer. Each of the first magnetic layer and the second magnetic layer has a granular structure including magnetic grains having a L10 structure and a grain boundary portion. The grain boundary portion of the first magnetic layer includes aluminum nitride, and the grain boundary portion of the second magnetic layer includes hexagonal boron nitride. An aluminum nitride content in the first magnetic layer is in a range of 15 vol % to 35 vol %, and a peak in a B1s spectrum of the grain boundary portion of the second magnetic layer observed using X-ray photoelectron spectroscopy is 191.6 eV or less.
Owner:RESONAC HARD DISK CORP

Magnetic recording medium with platinum-doped CO-BN capping layer and magnetic recording device for use therewith

Various devices, apparatuses, methods, and media for heat assisted magnetic recording (HAMR) are disclosed that, in some examples, provide HAMR media with a platinum doped CO-BN capping layer. In one example, the HAMR medium includes a CoPtBN capping layer on a magnetic recording layer having Pt in a range of 5 atomic percent (at.%) to 12 at.%. The atomic ratio of Co to Pt in the CoPtBN may be in the range of, for example, 5 to 13. The BN in the CoPtBN may comprise, for example, from 22 mol% to 30 mol% of the CoPtBN. The CoPtBN may have a face-centered cubic (FCC) crystal structure. The HAMR media may have various other layers, such as a substrate, a heat sink layer on the substrate, and a seed layer on the heat sink layer, with the magnetic recording layer on the seed layer. The seed layer may include MgO or MgO-TiO. An amorphous soft underlayer (SUL) may be provided.
Owner:WESTERN DIGITAL TECHNOLOGIES INC

Dielectric reproducing device and dielectric recording and reproducing device

A dielectric reproducing device and a dielectric recording and reproducing device that can improve the reproduction speed. A detection means is provided so as to be able to detect a polarization state of each bit 1a corresponding to the data recorded in a data recording layer by relatively scanning the data recording layer made of a dielectric material. A heating means is provided so as to be able to heat the bit to be detected to a predetermined temperature while the detection means detects the polarization state. A reproducing means is provided so as to be able to reproduce the data based on the polarization state of each bit detected by the detection means.
Owner:TOHOKU UNIV

Magnetoresistive element and magnetic memory device

A magnetoresistive effect element includes a reference layer, a barrier layer, a recording layer, and a channel layer that are disposed on top of one another, and a first terminal connected to the reference layer, and a second terminal and a third terminal connected to the channel layer. The channel layer includes a first channel layer and a second channel layer, the first channel layer has electrical resistance larger than electrical resistance of the second channel layer, the second terminal is connected to the first channel layer, and the third terminal is connected to the second channel layer, a write current flows between the second terminal and the third terminal via the first channel layer and the second channel layer, and a read current flows between the first terminal and the third terminal.
Owner:TOHOKU UNIV

Novel developer and recording material

To provide a recording material in which a printing part is excellent in water resistance and alcohol resistance.SOLUTION: There are provided a developer containing a compound represented by the following general formula (1) (wherein, n represents 0 to 2. R1 represents a halogen atom, a straight or branched chain alkyl group having 1 to 8 carbon atoms, a straight or branched chain alkoxy group having 1 to 8 carbon atoms or a substituent of the formula (2). R2 represents a hydrogen atom, an alkyl group which may be substituted or an aryl group which may be substituted.), a recording material containing the developer, a thermosensitive recording layer containing the recording material and a thermosensitive recording paper having the thermosensitive recording layer.SELECTED DRAWING: None
Owner:NIPPON KAYAKU CO LTD

Single-servo-layer multi-recording-layer optical disc drive, memory, and electronic device

A single-servo-layer multi-recording-layer optical disc drive, a memory, and an electronic device. A dichroic mirror is provided in the optical disc drive. A light beam of a first light source is projected on the surface of one side of the dichroic mirror and then is reflected to a recording medium of an optical disc to read and write data. A light beam of a second light source may directly transmit through the dichroic mirror and be transmitted to a servo layer of the recording medium of the optical disc. The dichroic mirror can be fixed in the optical disc drive by means of a movable assembly. The movable assembly can change the orientation of the dichroic mirror to adjust the relative position between a propagation direction of the light beam of the first light source and a propagation direction of the light beam of the second light source, so as to eliminate errors generated in the processes of installation, use and the like of the optical disc drive. The optical disc drive of the present application has the advantages of small internal structure change, simple implementation process, high control precision and the like, and the effect that while accurate servo of the light beam of the second light source in the servo layer is implemented, the light beam of the first light source is projected to a data track center of each recording layer of the optical disc is realized at low costs.
Owner:HUAWEI TECH CO LTD

Thermosensitive recording body

Disclosed is a heat-sensitive recording body which has, on one side of a paper support, a primer layer containing hollow particles having a hollow ratio of 80 to 98% and a heat-sensitive recording layer containing a leuco dye and a color developer in this order, and on the other side of the paper support, a back layer containing a pigment, wherein the back layer has a Gurley smoothness of 500 seconds or more, and the hollow particles are contained in a proportion of 5 to 30% by mass in the total solid content of the primer layer.
Owner:OJI HLDG CORP