LexDanaLexDanabeta
Inventor

Yoshiaki Takahashi

Inventor
Chiba, JP

Overview

82→
Patents
1986–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 82 as inventor

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

Y02Tprimary
Y02TClimate change mitigation technologies related to transportation8%
G06FElectric digital data processing7%
H10KOrganic electric solid-state devices6%
B63BShips or other waterborne vessels6%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
H01JElectric discharge tubes or discharge lamps6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
H04NPictorial communication, e.g. television4%
H05BElectric heating4%
B60LPropulsion of electrically-propelled vehicles3%
PatentTitleYear
10,999,918X-ray tube and X-ray generation device202110,861,865Semiconductor storage device20209,650,038'Vehicle control system'20179,122,436'Virtual printer interface node'20159,098,218'System for authenticating communications between a non-cloud ready networked printer and a cloud-based servise through a virtual printer interface device'20159,047,027'System for authenticating communications between a non-cloud ready networked printer and a cloud-based service through a virtual printer interface device'20158,970,885'Virtual printer interface node'20158,970,859'Virtual printer interface node'20158,917,414'Virtual printer interface node'20148,913,272'Virtual printer interface node'20148,908,213'Virtual printer interface node'20148,908,214'Virtual printer interface node'20148,684,118'Cooling structure for electricity storage device'20148,645,022'Vehicle control system'20148,441,003'Phosphorescent polymer compound based on iridium polymer complex and organic electroluminescent device utilizing the same'20138,426,038'Phosphorescent polymer compound and organic electroluminescence device using the same'20138,257,837'Organic light-emitting device'20128,165,745'Vehicle control system'20128,066,393'Liquid crystal display device'20118,025,987'Light emitting polymer material, organic electroluminescence device and display device comprising light emitting polymer material'20118,011,310'Ship with reduced frictional resistance and its operation method'20117,872,411'Organic electroluminescence device using a copolymer and a phosphorescent compound'20117,868,695'Differential amplifier'20117,855,765'Liquid crystal display device'20107,808,576'Liquid crystal display device'20107,763,365'Light emitting material and organic light-emitting device'20107,736,757'Light emitting material and organic light-emitting device'20107,737,434'Light-emitting diode illumination source'20107,729,827'Vehicle control system'20107,677,191'Frictional resistance reduction ship and operation method'20107,654,212'Frictional resistance reduction ship'20107,635,527'Light emitting material and organic light-emitting device'20097,630,807'Vehicle control system'20097,582,363'Organic polymer light-emitting element material having gold complex structure and organic polymer light-emitting element'20097,570,321'Liquid crystal display device and backlight'20097,396,598'Light emitting material and organic light-emitting device'20087,240,752'Vehicular electrical equipment unit heating and cooling system and hybrid vehicle'20077,201,588'Electronic apparatus with jack'20077,071,698'Power supply apparatus for detecting battery voltage and the portions of faults'20067,011,176'Power device for an automotive vehicle'20066,789,491'Friction reducing ship and method for reducing frictional resistance'20046,748,891'Frictional resistance reducing method, and ship with reduced frictional resistance'20046,664,462'Metal complex having -diketonate, process for production thereof, photoelectric conversion element, and photochemical cell'20036,538,385'Cathode-ray tube and flat electrode of electronic gun and production method'20036,509,682'Cathode ray tube having an improved electron gun'20036,324,480'Method for analyzing friction reduction effects of bubbles in friction-reducing ship'20016,304,289'Submerged laser television and submerged laser visual recognizer'20016,186,085'Method for reducing frictional resistance of hull, frictional resistance reducing ship using such method, and method for analyzing ejected air-bubbles from ship'20016,145,459'Friction-reducing ship and method for reducing skin friction'20006,115,511'Underwater laser imaging apparatus'20006,092,480'Generation of bubbles for friction-reducing ship and method for reducing skin-friction'20006,026,758'Method for analyzing bubble jet from a ship'20006,017,067'Latch device for a tailgate of a vehicle'20006,016,763'Submersible unit and diving position control method therefor'20005,940,428'Spread spectrum signal receiving apparatus'19995,936,338'Color display system utilizing double quadrupole lenses under optimal control'19995,903,593'Spread spectrum signal receiver'19995,861,693'Power-generating electric motor'19995,847,500'Electron gun for color cathode ray tube and method of manufacturing the electron gun electrode'19985,840,133'Permanent magnet'19985,575,232'Method and device for reducing friction on a navigating vehicle'19965,551,007'Method for controlling multiple common memories and multiple common memory system'19965,539,278'Color cathode ray tube'19965,424,683'Differential amplification circuit wherein a DC level at an output terminal is automatically adjusted and a power amplifier wherein a BTL drive circuit is driven by a half wave'19955,418,404'Data processing device and plug-in package'19955,359,429'Facsimile machine having line density switching function'19945,343,009'Data processing device and plug-in package'19945,329,250'Double phase locked loop circuit'19945,082,761'Set of electrophotographic toners'19925,023,161'Method of making a toner for use in electrophotography'19915,015,910'Electron gun for color picture tube'19914,978,886'Electron gun for use in color cathode ray tube having a plurality of grid electrodes'1990D0309130'Central processor for an electronic computer'19904,918,561'Housing for electronic apparatus'19904,859,560'Toner for use in electrophotography'19894,851,741'Electron gun for color picture tube'19894,833,365'Electron gun structure for converging electron beams'19894,825,120'Electron gun apparatus with auxiliary electrodes for a color cathode-ray tube'19894,742,484'Data transmission apparatus having two unidirectional transmission connection lines transmitting data from slave stations located downstream to a master station at high speed'19884,642,760'Status-change data gathering apparatus'19874,631,490'Audio output amplifying device'19864,621,920'Preconditioning a photosensitive drum prior to actual photocopying'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2021Based in Kanagawa, JP· patent location history
1987–2017Patents assigned to HITACHI LTD (22)· patent assignee history
1987–2017Based in Mito, JP· patent location history
1989–2013Based in Chiba, JP· patent location history
1994–2011Based in Tokyo, JP· patent location history
1996–2004Patents assigned to ISHIKAWAJIMA HARIMA HEAVY IND (11)· patent assignee history
2008–2013Patents assigned to SHOWA DENKO KK (11)· patent assignee history
2010–2015Patents assigned to TAKAHASHI YOSHIAKI (10)· patent assignee history
2014–2015Patents assigned to XEROX INTERNAT PARTNERS (9)· patent assignee history
2014–2015Based in Mountain View, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD221987–2017
ISHIKAWAJIMA HARIMA HEAVY IND111996–2004
SHOWA DENKO KK112008–2013
TAKAHASHI YOSHIAKIself102010–2015
XEROX INTERNAT PARTNERS92014–2015
Locations
LocationPatentsSpan
Chiba, JP251989–2013
Tokyo, JP161994–2011
Mito, JP121987–2017
Mountain View, California, US92014–2015
Kanagawa, JP31986–2021