Inventor

Masato Tanaka

Inventor

Tokyo, JP

Overview

1980–2021

Patent span

Physics

Primary field (CPC G)

Patents· 355 as inventor

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

G03Gprimary

G03GElectrography15%

G11BInformation storage based on relative movement between record carrier and transducer9%

G05BControl or regulating systems in general4%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%

C07CAcyclic or carbocyclic compounds3%

Y10TTechnical subjects covered by former us classification3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%

PatentTitleYear

11,050,089Non-aqueous electrolyte solution, non-aqueous electrolyte secondary battery using non-aqueous electrolyte solution, battery pack using non-aqueous electrolyte secondary battery, and electronic apparatus2021 10,870,355Motor driving control apparatus and electric apparatus2020 10,834,272Reading device, image forming apparatus including same, and reading method2020 10,800,707Magnesia carbon brick and production method therefor2020 10,761,468Image forming apparatus2020 10,732,542Image forming apparatus for increase of color toner in a color toner image in a special operation2020 10,725,420Image forming apparatus having toner amount suppression control2020 10,467,489Distracted driving determination apparatus, distracted driving determination method, and recording medium having program for distracted driving determination2019 10,429,753Electrophotographic photoconductor, process cartridge, and electrophotographic apparatus2019 10,432,115Motor driving control apparatus2019 10,365,593Self-heating fuser roller2019 10,303,046Projector with hermetic housing and air guide wall therein2019 10,203,437Method of manufacturing a member, optical member and optical element2019 10,146,218Controlling system, assistance device, controlling device, and control method for adding time confirmation between sequences of data points collected from multiple controlling devices2018 10,122,172Air-conditioning control system and method2018 10,099,558Motor driving apparatus2018 10,040,508Motor driving control apparatus2018 10,036,944Phosphor wheel device and projector-type image display apparatus2018 10,014,568Mobile communication device2018 10,012,915Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same2018 9,995,498Monitoring apparatus and monitoring method2018 9,945,908Actuator fault detection device, controlling device and control method2018 9,933,765Control device and control method2018 9,921,499'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine pigment'2018 9,917,357'Antenna system'2018 9,896,153'Motor driving control apparatus'2018 9,897,982'PID controller and data collecting method'2018 9,876,271Mobile communication device2018 9,869,032'Manufacturing method of phthalocyanine crystal by milling crystal transformation for at least 1,000 hours'2018 9,864,284'Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2018 9,858,138'Failure factor identification supporting apparatus and failure factor identification supporting method'2018 9,857,705'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2018 9,851,117Need identifying device, air-conditioning controlling system, need identifying method, and air-conditioning controlling method2017 9,812,760'Antenna-equipped connector'2017 9,797,762'Controlling device'2017 9,780,452'Communication terminal'2017 9,753,385'Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2017 9,746,790'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same'2017 9,720,337'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same'2017 9,709,907'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2017 9,709,293'Controlling device and controlling method'2017 9,684,287'Controlling device and controlling method'2017 9,645,516'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2017 9,645,515'Electrophotographic photosensitive member and manufacturing method thereof, process cartridge and electrophotographic apparatus, and phthalocyanine crystal and manufacturing method thereof'2017 9,594,365'Cooperative operating device and method'2017 9,591,750'Wiring substrate and semiconductor device'2017 9,563,139'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2017 9,557,451'Diffusing plate having microlens array'2017 9,541,850'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2017 9,535,345'Solution of gallium phthalocyanine method for preparing the same method for producing gallium phthalocyanine crystal method for purifying composition containing gallium phthalocyanine and method for producing electrophotographic photosensitive member'2017 9,535,347'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2017 9,522,846'Magnesia carbon brick'2016 9,519,232'Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and hydroxygallium phthalocyanine crystal'2016 9,500,966'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2016 9,500,965'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus, and gallium phthalocyanine crystal'2016 9,474,826'Kit for adhering biological hard tissues'2016 9,465,149'Diffraction element and method of manufacturing diffraction element'2016 9,459,545'Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and a solid solution and manufacturing method of a solid solution'2016 9,459,544'Hydroxygallium phthalocyanine crystal, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2016 9,459,542'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and gallium phthalocyanine crystal'2016 9,442,399'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and phthalocyanine crystal'2016 9,436,106'Electrophotographic photosensitive member and manufacturing method therefor, process cartridge and electrophotographic apparatus including the electrophotographic photosensitive member, and phthalocyanine crystal and method producing therefor'2016 9,431,726'Multi-core cable'2016 9,428,172'Motor drive control device'2016 9,423,706'Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2016 9,348,242'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2016 9,341,965'Electrophotographic photosensitive member, method for manufacturing the same, electrophotographic apparatus, process cartridge, and hydroxygallium phthalocyanine crystal'2016 9,316,932'Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2016 9,269,477'Multi-core cable'2016 9,257,386'Wiring substrate and semiconductor device'2016 9,244,369'Electrophotographic photosensitive member, production method for electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and particle having compound adsorbed thereto'2016 9,223,233'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2015 9,217,938'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and phthalocyanine crystal'2015 9,220,167'Wiring substrate, semiconductor device, and method of manufacturing wiring substrate'2015 9,186,433'Kit for adhering biological hard tissues'2015 9,178,287'Multi-core cable assembly'2015 9,170,492'Silicon-containing film-forming composition, silicon-containing film, and pattern forming method'2015 9,172,226'Multi-core cable and aligning method therefor'2015 9,162,730'Motor driving control apparatus'2015 9,149,201'TWA measuring apparatus and TWA measuring method'2015 9,148,952'Wiring board'2015 9,140,985'Silicon-containing film-forming composition, silicon-containing film, and pattern forming method'2015 9,142,524'Semiconductor package and method for manufacturing semiconductor package'2015 9,122,137'Housing for projection display device and projection display device including housing for projection display device'2015 9,120,531'Motor driving control apparatus'2015 9,114,850'Motor drive control device'2015 9,104,098'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2015 9,091,951'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2015 9,086,640'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2015 9,068,083'Method of producing gallium phthalocyanine crystal and method of producing electrophotographic photosensitive member using the method of producing gallium phthalocyanine crystal'2015 9,057,969'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2015 9,054,082'Semiconductor package, semiconductor device, and method for manufacturing semiconductor package'2015 9,040,218'Solution of gallium phthalocyanine method for preparing the same method for producing gallium phthalocyanine crystal method for purifying composition containing gallium phthalocyanine and method for producing electrophotographic photosensitive member'2015 9,034,554'Method of producing gallium phthalocyanine crystal and method of producing electrophotographic photosensitive member using the method of producing gallium phthalocyanine crystal'2015 9,002,439'Blood vessel wall analyzing device and blood vessel wall analyzing method'2015 9,000,302'Wiring board'2015 8,994,193'Semiconductor package including a metal plate, semiconductor chip, and wiring structure, semiconductor apparatus and method for manufacturing semiconductor package'2015 8,993,204'Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus'2015 8,974,991'Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal'2015 8,968,458'Composition for resist underlayer film and process for producing same'2015 8,962,227'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, method of producing electrophotographic photosensitive member, and urea compound'2015 8,942,858'Controlling device and method'2015 8,865,381'Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,865,382'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing electrophotographic photosensitive member'2014 8,859,174'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,859,172'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,850,870'Pressure guiding tube blockage diagnosing device and blockage diagnosing method'2014 8,841,052'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2014 8,808,446'Composition for resist underlayer film and process for producing same'2014 8,805,589'Air conditioning operating device and air conditioning operating method'2014 8,791,020'Silicon-containing film, resin composition, and pattern formation method'2014 8,791,561'Semiconductor device and its manufacture method'2014 8,771,455'Process for production of composite fine particles with heterogeneous surfaces'2014 8,741,514'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,735,032'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,734,575'Airflow controlling device and method'2014 8,703,372'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2014 8,688,285'Total energy limiting and controlling device, and total electric power limiting and controlling device and method'2014 8,688,242'Operation controlling system and operation controlling device and method'2014 8,682,492'Setting value controlling method and device'2014 8,676,531'Method and device for living space added value efficacy index evaluation'2014 8,647,149'Connecting member-terminated multi-core coaxial cable and method for manufacture thereof'2014 8,638,691'Wireless communication system and parent node search method'2014 8,627,916'Saddle riding type vehicle'2014 8,617,777'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2013 8,566,064'Estimating polynomial generating device, estimating device, estimating polynomial generating method, and estimating method'2013 8,557,488'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2013 8,546,052'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing electrophotographic photosensitive member'2013 8,518,615'Method of drying organic pigment, method of processing phthalocyanine pigment, and method of manufacturing electrophotographic photosensitive member'2013 8,487,950'Video display apparatus and method, and signal processing circuit and liquid crystal backlight driver to be built therein'2013 8,481,236'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2013 8,419,442'Socket and method of fabricating the same'2013 8,415,078'Electrophotographic photosensitive member, process electrophotographic apparatus'2013 8,399,295'Semiconductor device and its manufacture method'2013 8,292,980'Dust capture device and projection type image display apparatus'2012 8,272,880'Socket and semiconductor device including socket and semiconductor package'2012 8,093,169'High-durability sleeve bricks'2012 8,088,541'Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2012 8,045,630'Scattered pilot location detector'2011 8,032,576'Fast fourier transform circuit and fast fourier transform method'2011 7,983,360'OFDM receiver and doppler frequency estimating circuit'2011 7,978,775'Frequency offset detector'2011 7,910,274'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2011 7,856,066'OFDM receiver and doppler frequency estimating circuit'2010 7,829,044'Phosphonamides, process for producing the same, and use thereof'2010 7,705,287'Broadband light source unit that produces a supercontinuum lightwave, and optical analyzer'2010 7,670,068'Actuator, shutter driving device for camera and method of manufacturing actuator'2010 7,664,556'Control object model generation device and generation method'2010 7,643,759'Signal-quality evaluation device, signal adjustment method, optical-signal evaluation system, and optical transmission system'2010 7,567,209'Microstrip antenna and clothes attached with the same'2009 7,551,808'Optical signal noise suppressor and optical signal noise suppressing method'2009 7,517,626'Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge which make use of the same'2009 7,482,958'OFDM receiver'2009 7,452,644'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2008 7,417,187'Composite cable and composite cable processed product'2008 7,408,306'Lamp lighting circuit and device, and lamp lighting apparatus and device'2008 7,392,814'Substrate processing apparatus and method'2008 7,385,096'Process for producing 1,2-diol'2008 7,376,470'Control method and apparatus'2008 7,361,831'Coaxial cable and multi-coaxial cable'2008 7,358,629'Electromagnetic actuator'2008 7,346,403'Pid parameter adjustment device'2008 7,333,752'Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus which have the electrophotographic photosensitive member'2008 7,324,756'Optical demultiplexer and optical transmission system'2008 7,276,318'Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge which make use of the same'2007 7,244,549'Pattern forming method and bilayer film'2007 7,245,851'Electrophotographic apparatus'2007 7,239,440'Wavelength conversion apparatus'2007 7,187,328'Antenna device'2007 7,183,196'Multilayer interconnection board and production method thereof'2007 7,166,737'Method for manufacturing phosphonate esters'2007 7,135,583'Process for preparation of alkenylphosphine oxides or alkenylphosphinic esters'2006 7,101,357'Disposable excreta management device'2006 7,097,950'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2006 7,092,770'Feedback control method and feedback control device'2006 7,071,890'Reflector'2006 7,071,962'Electrophotographic apparatus, process cartridge and electrophotographic photosensitive member unit'2006 7,060,046'Pelvis correction apparatus'2006 7,037,994'Acenaphthylene derivative, polymer, and antireflection film-forming composition'2006 7,033,680'Electroluminescent element'2006 7,003,379'Limit cycle autotuning method and heat/cool control apparatus'2006 6,991,583'System for controlling torque reduction at shifting for automatic transmission'2006 6,959,219'Control apparatus having a limit cycle auto-tuning function'2005 6,951,919'Fas ligand derivative'2005 6,949,667'Alkenylphosphonic ester and preparation process thereof'2005 6,949,621'Polymer containing 9-oxo-9-phosphafluorene-2,7-diyl skeleton in backbone and process for producing the same'2005 6,941,956'Substrate treating method and apparatus'2005 6,939,657'Method of manufacturing polymer resin particles for use in toners'2005 6,922,594'Controlling device and controlling method for control within a predetermined energy consumption amount'2005 6,914,940'Device for improving voice signal in quality'2005 6,898,819'Disposable tooth cleaning article'2005 6,898,943'Method of controlling temperature/humidity or temperature and device for controlling temperature/humidity or temperature'2005 6,895,287'Control method and control apparatus'2005 6,892,101'Feedback control method and feedback control apparatus'2005 6,889,184'Device for improving voice signal in quality'2005 6,852,791'Anti-reflection coating forming composition'2005 6,839,039'Antenna apparatus for transmitting and receiving radio waves to and from a satellite'2005 6,833,227'Electrophotographic photosensitive member, process-cartridge and apparatus'2004 6,787,241'Film obtained from silsesquioxane polymer and method of preparing same'2004 6,778,731'Control method of received power in optical communication, optical transmission apparatus, optical receiving apparatus, and optical communication system'2004 6,774,200'Silsesquioxane polymer molding and method of preparing same'2004 6,773,856'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2004 6,772,101'Position detection apparatus and arithmetic processing unit'2004 6,768,006'Phthalocyanine crystal, production process therefor, and electrophotographic photosensitive member, process cartridge and apparatus using the crystal'2004 6,765,107'Method for manufacturing phosphonate esters'2004 6,754,542'Control arithmetic apparatus and method'2004 6,753,401'Silcon-containing polymers'2004 6,705,905'Sea-land-sky craft'2004 6,683,175'Porphyrin compound, and electrophotographic photosensitive member, process-cartridge and apparatus using the compound'2004 6,684,113'Controlling device and controlling method'2004 6,610,872'Process for preparing polysilane by catalytic dehydrogenative condensation of organosilane and metal complex catalyst therefor'2003 6,490,807'Position detection apparatus'2002 6,472,524'Phthalocyanine compounds, process for production thereof and electrophotographic photosensitive member using the compounds'2002 6,470,292'Position detection apparatus'2002 6,465,143'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2002 6,447,967'Phthalocyanine crystal, production process therefor, and electrophotographic photosensitive member, process cartridge and apparatus using the crystal'2002 6,335,132'Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus including the photosensitive member'2002 6,310,613'Method and apparatus for changing numeric values on a display device'2001 6,270,936'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2001 6,248,490'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2001 6,245,472'Phthalocyanine compounds, process for production thereof and electrophotographic photosensitive member using the compounds'2001 6,218,063'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2001 6,190,811'Electrophotographic photosensitive member process cartridge and electrophotographic apparatus'2001 6,191,298'Thioalkenylphosphonic acid ester and process for the preparation thereof'2001 6,183,922'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2001 6,140,448'Process for preparing polysilane by catalytic dehydrogenative condensation of organosilane and metal complex catalyst therefor'2000 6,139,997'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2000 6,111,127'Process for the preparation of unsaturated phosphonic acid ester'2000 RE036803'Bit clock reproducing circuit'2000 6,040,100'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2000 5,977,394'Silyl thioalkene compound and method for the preparation thereof'1999 5,885,737'Hydroxygallium phthalocyanine compound, production process therefor and electrophotographic photosensitive member using the compound'1999 5,875,804'Substrate treating apparatus'1999 5,811,212'Electrophotographic photosensitive member containing an azocalix›n!arene compound and electrophotographic apparatus and process cartridge comprising the photosensitive member'1998 5,793,546'Data transmitting apparatus and data reproducing apparatus using format compatibility to achieve upward and downward compatibility'1998 5,777,819'Magnetic tape cassette'1998 5,693,826'Process for the production of unsaturated phosphonic ester'1997 5,666,589'Electrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensity'1997 5,663,397'Cyclic silyl enol ethers and method of preparing the same'1997 5,631,331'Method for the preparation of a heat-resistant silicon-containing polymer'1997 5,629,116'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member'1997 5,605,998'Method for producing polycarbosilanes'1997 5,602,687'Apparatus for automatically muting the output of a recording device during recording'1997 5,527,653'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus which employ the same'1996 5,521,714'Rotary head type reproducing apparatus'1996 5,520,744'Device for rinsing and drying substrate'1996 5,517,370'Single motor driver for a helical scan recording/reproducing device'1996 5,510,437'Organoplatinum polymer and method for producing the same'1996 5,506,738'Tape cassette with tape guide support structure'1996 5,479,533'Pattern recognition apparatus and method using fuzzy logic'1995 5,478,793'Pressure sensitive recording materials'1995 5,473,588'Signal reproducing apparatus providing PLL circuit controlled by drum motor speed'1995 5,464,718'Electrophotographic photosensitive member, process cartridge including same and electrophotographic apparatus'1995 5,453,342'Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same'1995 5,452,326'Digital PLL circuit with low power consumption'1995 5,449,800'Silicon-containing pentacyclic compound, a silicon-containing ladder polymer, and methods for producing the same'1995 5,432,668'Magnetic tape cassette with lid that cooperates with withdrawing member of cassette changer'1995 5,406,429'System for automatically adjusting parameters of a digital signal reproducing apparatus'1995 5,398,303'Fuzzy data processing method and data smoothing filter'1995 5,393,332'Color developer for pressure-sensitive recording sheets'1995 5,389,816'Multi-layer lead frame using a metal-core substrate'1995 5,357,144'Complementary logic circuit'1994 5,328,884'Pressure sensitive manifold sheet containing color developer composition'1994 D0346597'Magnetic tape cassette'1994 5,307,443'Apparatus for processing information based on fuzzy logic'1994 5,293,301'Semiconductor device and lead frame used therein'1994 5,288,333'Wafer cleaning method and apparatus therefore'1994 5,279,705'Gaseous process for selectively removing silicon nitride film'1994 5,276,580'Tape cassette including a spool locking member'1994 5,274,512'Coefficient control system for digital equalizer using orthogonal oscillation'1993 5,270,420'Stretched molding'1993 5,262,905'Monitor apparatus for rotary head'1993 5,252,766'Method for producing polysilanes'1993 5,250,108'Color developer composition, process for preparing aqueous dispersion thereof and pressure sensitive manifold sheet using thereof'1993 5,248,380'Method of treating surface of rotating wafer using surface treating gas'1993 5,246,807'Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same'1993 5,237,588'Automatic equalizer'1993 5,228,636'Tape cassette'1993 D0337112'Magnetic tape cassette'1993 5,222,199'Robot control method'1993 D0336642'Magnetic tape cassette'1993 5,218,502'Tape cassette'1993 5,210,670'Reel brake operable from both sides of magnetic tape cassette'1993 5,204,190'Method for preparing aqueous dispersion of developer and pressure-sensitive recording paper'1993 D0334186'Magnetic tape cassette'1993 5,194,353'Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile employing the same'1993 5,193,560'Cleaning system using a solvent'1993 5,187,418'Method of controlling articulated robot'1993 D0333303'Magnetic tape cassette'1993 5,174,855'Surface treating apparatus and method using vapor'1992 5,173,152'Method for selectively removing an insulating film'1992 5,173,830'Tape cassette with tapered self-aligning reel hubs'1992 D0331581'Magnetic tape cassette'1992 5,164,001'Method for preparing aqueous dispersion of developer and pressure-sensitive recording paper'1992 5,158,100'Wafer cleaning method and apparatus therefor'1992 5,159,507'Tape recording and/or reproducing apparatus with a single motor for driving its rotary heads, capstan and reel bases'1992 5,151,538'Organosilicon compound and process for producing organosilicon compound'1992 5,140,487'Magnetic tape cassette having dynamic tape guide'1992 5,129,955'Wafer cleaning method'1992 5,104,504'Method for the preparation of an alcohol from hydrocarbon'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2003Patents assigned to AGENCY IND SCIENCE TECHN (21)· patent assignee history

1982–2018Patents assigned to SONY CORP (62)· patent assignee history

1982–2020Based in Tokyo, JP· patent location history

1983–2020Patents assigned to TANAKA MASATO (51)· patent assignee history

1991–2017Based in Nagano, JP· patent location history

1992–2005Based in Tsukuba, JP· patent location history

1993–2019Patents assigned to CANON KK (89)· patent assignee history

1998–2009Based in Shizuoka, JP· patent location history

2008–2019Based in Tagata-gun, JP· patent location history

2013–2018Patents assigned to AZBIL CORP (22)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	89	1993–2019
SONY CORP	62	1982–2018
TANAKA MASATOself	51	1983–2020
AZBIL CORP	22	2013–2018
AGENCY IND SCIENCE TECHN	21	1980–2003

Locations

Location	Patents	Span
Tokyo, JP	134	1982–2020
Tagata-gun, JP	57	2008–2019
Shizuoka, JP	23	1998–2009
Nagano, JP	16	1991–2017
Tsukuba, JP	14	1992–2005