Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
32results about How to "High-frequency range" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Pitch modulating laminate
InactiveUS20050281997A1Intensity of reflected impact soundHigh frequency rangeCovering/liningsSynthetic resin layered productsVitrificationCrystallinity
A laminate comprises a core layer and one or more acoustic layers adhered to the core layer. The core layer is at least about 30 mils thick and comprises one or more materials selected from wood and wood composite. The total thickness of the one or more acoustic layers is greater than about 5 mils. The one or more acoustic layers comprise one or more polymers, have a glass transition temperature of at most about 0°C., and have a crystallinity of at most about 39 weight %. The laminate may be useful in flooring systems.
Owner:SEALED AIR U S
Solid electrolytic capacitor and method for producing the same
ActiveUS7800887B2Improve adhesionReduce contact resistanceHybrid capacitor electrolytesHybrid capacitor electrodesEpoxyElectrolysis
A solid electrolytic capacitor, having a small equivalent series resistance, is formed by burying a capacitor element inside an epoxy resin outer package. The capacitor element includes an anode, having part of an anode lead buried therein, a dielectric layer formed on the anode and containing a niobium oxide, and a cathode formed on the dielectric layer. The cathode includes a first electrolyte layer containing a conductive polymer and formed on the dielectric layer, an intermediate layer containing an organic silane and formed on the first electrolyte layer, a second electrolyte layer containing a conductive polymer and formed on the intermediate layer, a first conductive layer containing carbon particles and formed on the second electrolyte layer, and a second conductive layer containing silver particles and formed on the first conductive layer.
Owner:SANYO ELECTRIC CO LTD
Dc-dc converter and switching control circuit
InactiveUS20100194369A1High frequency rangeReduce noiseDc-dc conversionElectric variable regulationInductorEngineering
A switching control circuit for controlling on / off of a switching element for driving an inductor for voltage conversion, the switching control circuit including: a voltage comparator for determining whether an output voltage of the inductor is in a first state where the output voltage is equal to or higher than a predetermined electric potential or in a second state where the output voltage is lower than the predetermined electric potential; a timing determination unit for determining an on-timing to turn on the switching element based on a clock signal having a predetermined frequency even when the output voltage is in the first state; and a drive control circuit for generating a driving signal to turn on or turn off the switching element based on an output signal of the timing determination unit.
Owner:MITSUMI ELECTRIC CO LTD
Magnetic sensor, side-opened TEM cell, and apparatus using such magnetic sensor and side-opened TEM cell
InactiveUS6856131B2Suppress generationHigh frequency rangeElectrical testingMagnetic property measurementsCapacitanceTem cell
A magnetic sensor has a monotonic response to high-frequency magnetic strengths in a frequency range up to superhigh frequencies. The magnetic sensor includes a shielded loop coil having a triplate stripline structure. The shielded loop coil has one-turn looped ground patterns formed respectively in a first layer and a fifth layer and connected parallel to each other by a via, and has an inductance L. The one-turn looped ground patterns have end electrodes facing each other across gaps, one of the end electrodes including the via, providing a combined capacitor operable at high frequencies and having a capacitance C. The product L×C of the inductance L and the capacitance C is 2.5×10−20 or less and the maximum outer circumference length of the one-turn looped ground lines is 50 [mm] or less.
Owner:RYOWA DENSHI
Solid electrolytic capacitor
ActiveUS20060262486A1Lower ESRImprove leakage currentClosuresLiquid electrolytic capacitorsElectrolysisElectrolytic capacitor
A solid electrolytic capacitor includes a plurality of laminated capacitor elements; an anode terminal connected to an anode portion where anode exposed portions of the capacitor elements are connected together; and a cathode terminal connected to a cathode portion where cathode layers of the capacitor elements are bonded together. Between lamination planes of the cathode layers of the capacitor elements, a conductive sheet is disposed. The capacitor elements are coated with a packaging resin layer in such a manner that a part of the anode terminal and a part of the cathode terminal are exposed.
Owner:PANASONIC CORP
Solid electrolytic capacitor
InactiveUS7359181B2Reduce inductanceSolve the large impedanceLiquid electrolytic capacitorsCasings/cabinets/drawers detailsElectrolysisSurface mounting
A solid electrolytic capacitor includes a porous sintered body made of valve metal, and an external anode terminal used for surface-mounting. The anode terminal is offset from the center of the sintered body, as viewed in the thickness direction or first direction of the sintered body. Further, the anode terminal is spaced away from the sintered body in a second direction which is perpendicular to the first direction. Between the sintered body and the anode terminal is formed a conductive path, which is inclined with respect to both the first and the second directions. The path comes closer to the anode terminal in the first direction as it goes farther away from the sintered body in the second direction.
Owner:ROHM CO LTD
Ultra broad-band low noise amplifier utilizing dual feedback technique
InactiveUS20070176686A1High frequency rangeLow noiseNegative-feedback-circuit arrangementsAmplifier with semiconductor-devices/discharge-tubesRadio frequencyBroadband
This invention relates to a low noise amplifier, used in radio frequency integrated circuit design, especially low noise amplifiers for ultra broad-band wireless communication, comprising at least a transistor of the core circuit of a low noise amplifier structure, a transformer that is implemented on the chip, in order to form a dual feedback amplifier, that is, an amplifier structure comprising an inductive feedback and a capacitive feedback, wherein the capacitive feedback is used for the low and medium frequency range, while the inductive feedback is used for the high frequency range. By assembling an amplifier circuit with these two feedback paths, it is possible to provide a broadband and good impedance matching at the signal input end of the circuit. The low noise amplifier circuit structure of the present invention is able to provide optimal conditions for broadband input impedance matching and broadband noise optimum; besides significantly increasing the gain and gain flatness, there are also huge improvements to the noise performance and the cost-down on fabrication, and the energy consumption can also be maintained at a very low level.
Owner:NATIONAL CHIAO TUNG UNIVERSITY
Exhaust pipe support
An exhaust pipe support including an elastic body having a ring shape, the elastic body comprising: an upper attachment portion having an upper attachment hole; a lower attachment portion having a lower attachment hole; and a pair of arm portions mutually connecting the upper and lower attachment portion. A first reinforcement rib is integrally formed on each outer circumferential surface of the arm portions. An upper end thereof is located at a higher position than a connecting position of an inner circumferential surface of the arm portion and the upper attachment portion and at a higher position than the center of the upper attachment hole, while a lower end thereof is located at a lower position than a connecting position of the inner circumferential surface of the arm portion and the lower attachment portion and at a lower position than the center of the lower attachment hole.
Owner:SUMITOMO RIKO CO LTD
Solid electrolytic capacitor and method of making the same
InactiveUS20070188982A1Reduce bending forcePrevent steppingLiquid electrolytic capacitorsCasings/cabinets/drawers detailsSurface mountingOptoelectronics
A solid electrolytic capacitor includes a porous sintered body made of valve metal, and an external anode terminal used for surface-mounting. The anode terminal is offset from the center of the sintered body, as viewed in the thickness direction or first direction of the sintered body. Further, the anode terminal is spaced away from the sintered body in a second direction which is perpendicular to the first direction. Between the sintered body and the anode terminal is formed a conductive path, which is inclined with respect to both the first and the second directions. The path comes closer to the anode terminal in the first direction as it goes farther away from the sintered body in the second direction.
Owner:ROHM CO LTD
Solid electrolytic capacitor
ActiveUS7342772B2More reduced ESRImprove leakage currentClosuresLiquid electrolytic capacitorsElectrolysisEngineering
A solid electrolytic capacitor includes a plurality of laminated capacitor elements; an anode terminal connected to an anode portion where anode exposed portions of the capacitor elements are connected together; and a cathode terminal connected to a cathode portion where cathode layers of the capacitor elements are bonded together. Between lamination planes of the cathode layers of the capacitor elements, a conductive sheet is disposed. The capacitor elements are coated with a packaging resin layer in such a manner that a part of the anode terminal and a part of the cathode terminal are exposed.
Owner:PANASONIC CORP
Electric Motor Control Device
ActiveUS20150091483A1Reduce vibrationAccurate speedMotor/generator/converter stoppersSynchronous motors startersEngineeringControl theory
An electric motor control device is capable of reducing vibration in a speed fluctuation range at a high frequency. The electric motor control device includes a target rotation speed setting unit that sets the target rotation speed of an electric motor, a rotation speed estimation unit that calculates an estimated rotation speed of the electric motor, and a drive command signal generation unit that generates a drive command signal for the electric motor so as to eliminate a rotation speed difference between the target rotation speed and the estimated rotation speed. The rotation speed estimation unit includes an error calculation unit that calculates an error related to rotation of the electric motor and an estimated corrected rotation speed calculation unit that calculates an estimated corrected rotation speed by taking the error as input and correcting the estimated rotation speed.
Owner:CALSONIC KANSEI CORP +1
Record medium recording equivalent circuit model of electricity storage element, derivation program, record medium thereof, derivation apparatus, simulation program, record medium thereof, simulation apparatus, method of designing, method for conforming/nonconforming decision, and conforming/nonconforming decision apparatus
InactiveUS20050267724A1Improve accuracySimulation is accurateComputer aided designSpecial data processing applicationsCapacitanceElectricity
A computer-readable record medium, recording an equivalent circuit model of an electricity storage element wherein a real part of an equivalent impedance varies to approximate to a real part of a measured impedance according to a frequency of an applied AC signal, records the equivalent circuit model including a first circuit corresponding to an electricity storage unit and a second circuit corresponding to a terminal unit and connected in series with the first circuit, wherein the first circuit includes at least one series circuit including a first parallel circuit and a second parallel circuit connected in series, the first parallel circuit includes a first resistance and a first inductance connected in parallel with the first resistance, and the second parallel circuit includes a second resistance and a capacitance connected in parallel with the second resistance.
Owner:SANYO ELECTRIC CO LTD
Mo-doped Co2Z-type ferrite composite material for use ultra-high frequency antennas
ActiveUS10766786B2Tunable permeabilityTunable permittivityMolybdeum compoundsRadiating elements structural formsMicrowaveDielectric loss
Owner:ROGERS CORP
Electric motor control device
ActiveUS9287811B2Reduce vibrationHigh-frequency rangeElectric motor controlVector control systemsControl theoryElectric motor
An electric motor control device is capable of reducing vibration in a speed fluctuation range at a high frequency. The electric motor control device includes a target rotation speed setting unit that sets the target rotation speed of an electric motor, a rotation speed estimation unit that calculates an estimated rotation speed of the electric motor, and a drive command signal generation unit that generates a drive command signal for the electric motor so as to eliminate a rotation speed difference between the target rotation speed and the estimated rotation speed. The rotation speed estimation unit includes an error calculation unit that calculates an error related to rotation of the electric motor and an estimated corrected rotation speed calculation unit that calculates an estimated corrected rotation speed by taking the error as input and correcting the estimated rotation speed.
Owner:CALSONIC KANSEI CORP +1
Headphone
ActiveUS10687133B2Simple structureDesirable frequency characteristicMicrophonesHeadphones for stereophonic communicationEngineeringFrequency characteristic
A headphone is provided that includes a driver unit securely fixed to the baffle plate with a simple structure and has desirable frequency characteristics in a high frequency range and a low frequency range. A headphone includes a baffle plate, a driver unit fixed to the baffle plate, and a fixing member fixing the driver unit to the baffle plate. The fixing member includes a contact part having a shape of a plate in contact with the outer edge of the driver unit.
Owner:AUDIO-TECHNICA
Variable capacitor
ActiveUS6975498B2Reduce resistanceSmall capacitanceMechanically variable capacitor detailsCapacitor with electrode area variationCapacitanceDielectric substrate
Owner:MURATA MFG CO LTD
Exhaust pipe support
An exhaust pipe support including an elastic body having a ring shape, the elastic body comprising: an upper attachment portion having an upper attachment hole; a lower attachment portion having a lower attachment hole; and a pair of arm portions mutually connecting the upper and lower attachment portion. A first reinforcement rib is integrally formed on each outer circumferential surface of the arm portions. An upper end thereof is located at a higher position than a connecting position of an inner circumferential surface of the arm portion and the upper attachment portion and at a higher position than the center of the upper attachment hole, while a lower end thereof is located at a lower position than a connecting position of the inner circumferential surface of the arm portion and the lower attachment portion and at a lower position than the center of the lower attachment hole.
Owner:SUMITOMO RIKO CO LTD
Speaker and device using the same
ActiveUS7634102B2Small thicknessIncrease the sound pressure levelLoudspeaker diaphragm shapeNon-planar diaphragms/conesEngineeringLoudspeaker
Owner:PANASONIC CORP
High-pressure fan
InactiveUS7125219B2Reduces need for spaceImprove efficiencyPump componentsStatorsImpellerEngineering
The invention relates to a high-pressure fan which comprises an electric motor provided with a shaft that goes through it; blade wheels which are mainly made of a carbon fibre-based composite material, arranged on both sides of the electric motor and mounted directly on the shaft of the electric motor; fan housings surrounding the blade wheels; and an intermediate channel which connects a pressure opening of one fan housing to a suction opening of the other fan housing, the intermediate channel being integrated into the base structure of the high-pressure fan.
Owner:HOWDEN AXIAL FANS
Use of a preselection filter bank and switched local oscillator counter in an instrumentation receiver
InactiveUS20050208964A1High frequency rangeDiscontinuous tuning for band selectionFrequency analysisLocal oscillatorEngineering
An instrumentation receiver architecture for processing an RF signal has a dual-IF channel architecture, a low-band IF channel and a high-band IF channel, and a tunable oscillator, such as a yttrium-iron-garnet (YIG) tunable oscillator (YTO), a voltage controlled oscillator (VCO), a bank of VCOs and the like, providing a different mixing frequency range to each channel, generally a higher frequency range to the high-band IF channel than to the low-band IF channel. At the input to the high-band IF channel is a bank of preselection filters for selecting a frequency band from the RF signal for processing by the high-band IF channel. A switch selects the output from one of the low-band and high-band IF channels for further processing.
Owner:EARLS JEFFREY D
Method of manufacturing semiconductor device including air space formed around gate electrode
InactiveUS20060199322A1Reduce parasitic capacitanceImprove featuresSolid-state devicesSemiconductor/solid-state device manufacturingMetal interconnectDevice material
After a HEMT is formed, side walls are formed on a semiconductor substrate. Next, a sacrificial layer is formed to cover the HEMT. Next, contact holes are formed in the sacrificial layer to expose upper surfaces of source electrodes. Next, a metal interconnect line is formed by patterning a metal film formed on the entire top surface. Next, slits are formed in the metal interconnect line to partially expose an upper surface of the sacrificial layer. After the sacrificial layer is dissolved, the dissolved sacrificial layer is discharged through the slits to the outside. An air space is formed as a result of the removal of the sacrificial layer.
Owner:MITSUBISHI ELECTRIC CORP
Novel sliding TMD capable of adjusting frequency continuously
PendingCN107841938AChange the effective stiffnessTo achieve the purpose of frequency modulationBridge structural detailsProtective buildings/sheltersControl theoryShock absorber
The invention relates to the technical field of vibration reduction and disaster prevention of building structures, and discloses a novel sliding TMD capable of adjusting frequency continuously. The novel sliding TMD comprises a spring, an adjusting plate, a rotary connecting plate, a damper, a mass block and a support, wherein the adjusting plate, the spring and the damper are arranged on the support; the adjusting plate and the spring are separately arranged at two ends of the support; the rotary connecting plate is arranged above the support; one end of the rotary connecting plate is rotatably connected with the adjusting plate; the other end of the rotary connecting plate is supported through the spring; the mass block is slidably arranged on the rotary connecting plate; the height ofthe rotary connecting plate relative to the support is adjustable; and the position of the spring on the support is adjustable. The problems that the frequency of a frequency adjusting mass damper cannot be adjusted continuously, and a frequency adjusting range is small are solved.
Owner:NANTONG LANKE DAMPING TECH CO LTD
Capacitor element
InactiveUS20150194268A1Increase capacitanceAvoid excessive currentSolid electrolytic capacitorsCapacitor electrodesSurface layerBoiling point
A capacitor element including at least an anode body composed of a sintered compact containing tungsten as a main component, a dielectric layer with a smooth surface formed by chemical conversion of the surface of the anode body, and a semiconductor layer laminated on the dielectric layer. The capacitor is obtained by a production method which includes the steps of chemically converting the surface layer of the tungsten powder sintered compact into the dielectric layer in an aqueous solution containing 0.05 to 12% by mass of an oxidant composed of an oxygen-containing compound at a solution temperature of 62° C. or less, and removing all or most of water adhering to the inner surface of pores at a temperature of less than the boiling point of water, followed by drying at a temperature of not less than the boiling point of water.
Owner:SHOWA DENKO KK
Soundproof material for vehicle and wire-harness assembly
ActiveUS9707906B2High-frequency rangeCharacteristic is differentSynthetic resin layered productsVehicle componentsEngineeringMechanical engineering
Owner:YAZAKI CORP
Speaker diaphragm
ActiveUS20220038809A1Improve rigidityReduce probabilityFibre diaphragmsNon-planar diaphragms/conesEngineeringLoudspeaker
Owner:FOSTER ELECTRIC CO LTD
SOUNDPROOF MATERIAL FOR VEHICLE and WIRE-HARNESS ASSEMBLY
ActiveUS20160355148A1Convenience to workImprove work efficiencySynthetic resin layered productsVehicle componentsEngineeringMechanical engineering
Owner:YAZAKI CORP
Speaker diaphragm
ActiveUS11418869B2Improve rigidityReduce probabilityFibre diaphragmsNon-planar diaphragms/conesEngineeringLoudspeaker
A diaphragm has a configuration including a diaphragm main body, a cone part on an outer periphery of the diaphragm main body, a ring member joined to the cone part, and an edge having an inner periphery joined to an outer periphery of the ring member or an outer periphery of the cone part. This configuration improves the rigidity without changing the shape of the diaphragm main body, that is, without giving rise to a mass increase in the diaphragm main body, and keeps the sound pressure from decreasing in a high frequency range.
Owner:FOSTER ELECTRIC CO LTD
Method of manufacturing semiconductor device including air space formed around gate electrode
InactiveUS7358179B2Reduce parasitic capacitanceImprove featuresSolid-state devicesSemiconductor/solid-state device manufacturingMetal interconnectSemiconductor
After a HEMT is formed, side walls are formed on a semiconductor substrate. Next, a sacrificial layer is formed to cover the HEMT. Next, contact holes are formed in the sacrificial layer to expose upper surfaces of source electrodes. Next, a metal interconnect line is formed by patterning a metal film formed on the entire top surface. Next, slits are formed in the metal interconnect line to partially expose an upper surface of the sacrificial layer. After the sacrificial layer is dissolved, the dissolved sacrificial layer is discharged through the slits to the outside. An air space is formed as a result of the removal of the sacrificial layer.
Owner:MITSUBISHI ELECTRIC CORP
Capacitor element
InactiveUS10032563B2Increase capacitanceAvoid excessive currentSolid electrolytic capacitorsCapacitor electrodesSurface layerBoiling point
Owner:RESONAC HOLDINGS CORPORATION
Variable capacitor
ActiveUS20040257746A1High frequencyHigh-frequency rangeMechanically variable capacitor detailsCapacitor with electrode area variationCapacitanceDielectric substrate
A variable capacitor includes a stator and a rotor rotatably supported by a cover relative to the stator. The stator includes a first stator electrode of two or more layers and a second stator electrode of two or more layers in the interior of a dielectric substrate. The first stator electrode is connected to a first external electrode and the second stator electrode is connected to a second external electrode. The rotor includes a rotor electrode of two pieces opposing the stator electrodes, and capacitances are defined in the areas of overlap of the rotor electrode and stator electrodes. The capacitances are adjustable to extremely small levels.
Owner:MURATA MFG CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com