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Inventor

Masayoshi Takahashi

Inventor
Tokyo, JP

Overview

77→
Patents
1976–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 77 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography10%
H04NPictorial communication, e.g. television8%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
G11BInformation storage based on relative movement between record carrier and transducer5%
A61BDiagnosis4%
H05KPrinted circuits4%
B60LPropulsion of electrically-propelled vehicles3%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
G01RMeasuring electric variables3%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms3%
PatentTitleYear
10,845,794State identification device, state identification method and mechanical device202010,402,130Printing system and related control method in which a printing apparatus connects with a mobile terminal if a printing reservation corresponding to a printing instruction from the mobile terminal is managed by a server201910,389,918Document reading unit that ensures distinguishing and reading fluorescent color201910,351,451Ozone water and method for producing the same201910,250,770Image reading device, image forming apparatus, and method for controlling image reading device201910,160,334Power conversion device and machine equipped with power conversion device201810,003,274Power conversion device20189,991,815Power conversion apparatus20189,964,907Image forming apparatus and image forming system20189,948,210Electric power conversion device20189,906,158'Power conversion device'20189,866,127'Electrical power converting device'20189,827,783Image forming apparatus20179,803,539'Internal-combustion engine'20179,697,955'Capacitor device'20179,618,480'Method and apparatus for inspecting weld quality'20179,359,638'Multi-nucleic-acid amplification reaction tool'20169,345,150'Electrical converter'20169,285,411'Method and system for identifying an electrical noise propagation path'20169,254,751'Vehicle control device'20169,227,427'Image forming apparatus'20169,197,787'Image reading device, image forming apparatus, and image reading method'20159,112,402'Power conversion apparatus'20159,059,703'Switch circuit'20159,058,048'Voltage regulator having error amplifier'20159,060,148'Image reading device, image forming apparatus, and image reading method'20158,963,366'System for power transmission'20158,934,158'Image reading apparatus, image forming apparatus, and method of image reading using wavelength distribution control unit to produce plural durations each having different peak wavelength in each main scanning'20158,854,704'Image reading apparatus and image forming apparatus'20148,823,389'Method for identifying EMI sources in an electrical system'20148,754,148'Pigment composition for printing ink, method for producing the same and method for producing printing ink'20148,720,627'Battery arrangement structure of vehicle'20148,698,571'Circuit for improving the immunity performance of a vehicle network'20148,498,767'Power-supply control apparatus of vehicle'20138,451,063'Wideband low noise sensor amplifier circuit'20138,447,202'Printing without margins-enabled image forming apparatus and control method'20138,349,192'Method for collapsing microbubbles'20138,137,703'Ozone water and production method therefor'20128,128,782'Amine epoxy resin curing agent, gas barrier epoxy resin composition comprising the curing agent, coating agent, and adhesive agent for laminate'20128,035,071'Contamination-inspecting apparatus and detection circuit'20118,000,045'Inspection apparatus and inspection method of magnetic disk or magnetic head'20118,000,047'Inspection apparatus and inspection method of magnetic disk or magnetic head'20117,817,362'Inspection apparatus and inspection method of magnetic disk or magnetic head'20107,816,955'Ramp generator and circuit pattern inspection apparatus using the same ramp generator'20107,738,005'Image forming apparatus'20107,728,119'Nucleotide primer set and nucleotide probe for detecting genotype of methylene tetrahydrofolate reductase (MTHFR)'20107,718,048'Base sequence detecting electrode, base sequence detecting device and base sequence detecting method'20107,447,450'Image forming device with a color detection apparatus'20087,276,900'Magnetic characteristic inspecting apparatus and inspecting method using it'20077,097,751'Base sequence detecting electrode, base sequence detecting device and base sequence detecting method'20066,981,458'Sewing machine with work edge cutting mechanism'20066,894,489'TESTING APPARATUS FOR CONDUCTING A TEST ON A MAGNETIC RECORDING MEDIUM OR A MAGNETIC HEAD, THROUGH RECORDING TEST DATA ON THE MAGNETIC RECORDING MEDIUM AND REPRODUCING RECORDED TEST DATA THEREFROM BY MEANS OF THE MAGNETIC HEAD'20056,856,338'Image forming apparatus'20056,788,438'Image reading device and image forming apparatus comprising the same'20046,700,369'Testing apparatus of magnetic recording medium or magnetic head including a plurality of analog-to-digital converters which convert reproduced testing data into digital data'20046,592,143'Passenger protection device for vehicle'20036,540,259'Shock absorbing structure'20036,191,865'Image processing system and method for controlling such system'20016,188,850'Printing paper and method of image formation employing the same'20016,147,938'Vehicle electronic system'20005,857,734'Energy absorbing structure for side portion of vehicle body'19995,756,969'Heating control apparatus'19985,717,988'Fixing rotor having an offset prevention layer containing a hollow double shell conductive substance'19985,713,060'Image forming apparatus capable of discharging remaining sheets'19985,620,793'Printing paper and method of image formation employing the same'19975,432,424'Motor control device motor control device including a gate element and current controller that controls motor current according to the gate element'19955,323,346'Semiconductor memory device with write-per-bit function'19944,872,035'Image forming apparatus'19894,777,512'Image forming apparatus with delay during toner replenishment'19884,553,544'Suturing instrument for surgical operation'19854,527,564'Suturing needle for medical operation'19854,484,580'Suturing instrument for surgical operation'19844,468,110'Method and apparatus for electrophotography'19844,440,171'Suturing instrument and a method of holding a shuttle'19844,437,465'Medical treatment sewing machine'19844,414,908'Suturing machine for medical treatment'19833,944,987'Digital logical sequence controller'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2006Patents assigned to JANOME SEWING MACHINE CO LTD (7)· patent assignee history
1984–2019Patents assigned to CANON KK (16)· patent assignee history
1984–2015Based in Kanagawa, JP· patent location history
1995–2019Based in Osaka, JP· patent location history
2004–2020Patents assigned to HITACHI LTD (12)· patent assignee history
2004–2017Based in Yokohama, JP· patent location history
2006–2020Based in Tokyo, JP· patent location history
2010–2019Based in Mishima, JP· patent location history
2012–2016Patents assigned to TAKAHASHI MASAYOSHI (15)· patent assignee history
2015–2018Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK161984–2019
TAKAHASHI MASAYOSHIself152012–2016
HITACHI LTD122004–2020
JANOME SEWING MACHINE CO LTD71983–2006
HITACHI AUTOMOTIVE SYSTEMS LTD62015–2018
Locations
LocationPatentsSpan
Tokyo, JP102006–2020
Yokohama, JP102004–2017
Kanagawa, JP101984–2015
Osaka, JP91995–2019
Mishima, JP62010–2019