Inventor

Hiroyuki Fujita

Inventor

Tokyo, JP

Overview

1981–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 219 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television10%

LOC149%

G01RMeasuring electric variables6%

G11BInformation storage based on relative movement between record carrier and transducer6%

G06FElectric digital data processing5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

H04JMultiplex communication3%

Y10TTechnical subjects covered by former us classification2%

G01NInvestigating or analysing materials by determining their chemical or physical properties2%

H01HElectric switches2%

PatentTitleYear

10,843,191Molecule detecting system2020 10,845,333DNA detection method2020 10,840,827Vibration energy harvester2020 10,833,607Electret element, electromechanical converter and method for manufacturing electret element2020 10,811,198Switch2020 10,671,128Information processing apparatus2020 10,566,912Vibration-driven energy harvester2020 10,372,036Mold, method of producing mold, production apparratus, and method of manufacturing semiconductor device2019 10,309,379Vibration energy harvester2019 10,290,443Switch2019 10,185,521Image forming apparatus that controls power supply based on result detected by human sensor2019 10,156,460Sensor mounting bracket2018 D0826930Personal computer2018 10,048,333Magnetic resonance imaging (MRI) coil with constant capacitance coupling2018 10,028,015Signal processing apparatus and signal processing method2018 9,991,576Electronic apparatus case2018 9,915,576'Pressure sensor and pressure detection device'2018 9,774,978'Position determination apparatus, audio apparatus, position determination method, and program'2017 9,726,563'Device member including cavity and method of producing the device member including cavity'2017 9,699,350'Communication device suppressing occurrence of communication disturbance'2017 9,696,290'Method for fractionating dioxins'2017 9,589,813'Stage unit and laser annealing apparatus including the same'2017 9,502,190'Switch'2016 9,413,917'Power source device, image processing apparatus'2016 9,383,779'Information processing device'2016 9,362,195'Semiconductor device'2016 9,323,624'File management system and file management method'2016 9,252,684'Power conversion apparatus and high-voltage DC transmission system'2016 9,240,498'Optical semiconductor device'2016 9,170,764'Image forming apparatus'2015 9,153,891'Terminal and connection structure of the same'2015 9,134,346'Method of making contact probe'2015 9,116,212'Pediatric coil assembly'2015 9,093,231'Switch'2015 D0733704'Personal computer'2015 D0729235'Personal computer'2015 9,029,968'Optical sensor device'2015 D0726707'Personal computer'2015 D0726178'Personal computer'2015 8,946,664'Optical sensor device having wiring pattern within cavity housing optical sensor element'2015 8,937,729'Image reading apparatus, image forming apparatus, and image reading method'2015 8,933,386'Optical sensor device and method of manufacturing the same'2015 8,928,946'Image reading device, image forming apparatus, and image reading method'2015 D0717794'Arithmetic and control unit'2014 D0717292'Arithmetic and control unit'2014 D0717297'Arithmetic and control unit'2014 D0717293'Arithmetic and control unit'2014 D0717294'Arithmetic and control unit'2014 D0716801'Arithmetic and control unit'2014 D0716794'Personal computer'2014 D0716802'Arithmetic and control unit'2014 D0715287'Personal computer'2014 D0715288'Personal computer'2014 D0715294'Arithmetic and control unit'2014 D0714287'Personal computer'2014 8,797,734'Electronic apparatus'2014 8,717,027'Organ viability'2014 D0700601'Personal computer'2014 D0697906'Arithmetic and control unit'2014 D0697513'Arithmetic and control unit'2014 8,624,453'Motor with encoder and encoder for motor'2014 8,620,133'Audio amplifier'2013 D0690691'Personal computer'2013 D0687032'Personal computer'2013 8,441,706'Optical module, optical control method by optical module, optical switch, and optical switching method'2013 D0676847'Personal computer'2013 D0668248'Personal computer'2012 8,134,173'Lighting device having light emitting element mounted in glass substrate'2012 8,110,118'Method of manufacturing circuit board'2012 8,106,893'Sensing apparatus and method, and program therefor'2012 8,088,739'Method of fixing rail molecule and nano transport device'2012 8,007,673'Method of manufacturing circuit board'2011 8,005,504'Wireless communication apparatus having wireless communication functions conforming to incompatible communication standards'2011 7,990,165'Contact probe and method of making the same'2011 7,985,929'Circuit board and method of manufacturing the same'2011 7,924,123'Method and system for adjusting an electromagnetic relay'2011 7,911,304'Electromagnetic relay'2011 7,911,301'Electromagnetic relay'2011 D0631039'Personal computer'2011 D0630626'Personal computer'2011 D0630627'Personal computer'2011 D0628996'Personal computer'2010 D0628995'Personal computer'2010 7,825,755'Electrostatic micro actuator, electrostatic microactuator apparatus and driving method of electrostatic micro actuator'2010 7,821,402'IC tags/RFID tags for magnetic resonance imaging applications'2010 D0622269'Personal computer'2010 7,767,987'Electron beam irradiation method, electron beam irradiation apparatus, and electron beam irradiation apparatus for open-mouthed container'2010 D0616435'Personal computer'2010 D0616434'Personal computer'2010 D0615079'Personal computer'2010 D0607883'Personal computer'2010 7,633,769'DC-AC converter, and method for supplying AC power'2009 7,542,654'Video playback control apparatus, content playback control apparatus, and method of supplying commercial information'2009 D0589508'Personal computer'2009 7,414,422'System in-package test inspection apparatus and test inspection method'2008 7,336,074'Active decoupling of MRI RF transmit coils'2008 7,322,622'Nano-gripper and method of producing same'2008 7,248,488'DC-AC converter, and method for supplying AC power'2007 7,236,375'DC/AC converter and its controller IC'2007 7,220,147'Microconnector and manufacturing method of socket therefor'2007 7,221,161'Coil arrays for parallel imaging in magnetic resonance imaging'2007 7,136,578'Apparatus and method for recording and reproducing data, and AV server'2006 7,126,831'DC-AC converter, and method for supplying AC power'2006 7,090,781'Micro-actuator and method making the same'2006 7,046,526'DC-AC converter, and method for supplying AC power'2006 7,046,008'Radio-frequency coil apparatus'2006 6,975,115'Coil arrays for parallel imaging in magnetic resonance imaging'2005 6,941,002'Fingerprint reading device and method thereof'2005 6,940,067'Hazardous material detection system'2005 6,930,480'Head coil arrays for parallel imaging in magnetic resonance imaging'2005 6,925,862'Engine oxygen concentration sensor mounting structure'2005 6,900,635'Head RF quadrature coil array for parallel imaging'2005 6,876,624'Multiplex conversion unit'2005 6,850,065'MRI coil system for breast imaging'2005 6,831,657'Display control apparatus for displaying gain setting value in predetermined color hue'2004 6,806,939'Display device'2004 6,806,450'Hazardous material detection system'2004 6,774,533'Electrostatic impact driving microactuator'2004 6,767,473'Method for fine pattern formation'2004 6,756,542'Front-cover assembly and information apparatus having the same'2004 6,728,470'Data recording and reproducing apparatus and method'2004 6,728,472'Video data reproducing device and video data reproducing method'2004 6,711,321'Mechanical optical switch and method for manufacturing the same'2004 6,711,344'Data reproduction using time slot allocation'2004 6,679,982'Oxygen sensor'2004 6,643,045'Optical scanner'2003 6,639,497'Stationary induction apparatus'2003 6,625,390'Apparatus and method for recording and reproducing data, and AV server'2003 6,611,652'Video data recording/reproducing system, audio/video data recording/reproducing device, its system, and data reproducing device'2003 6,584,840'Angular velocity sensor'2003 6,576,023'Method and apparatus for manufacturing microspheres'2003 6,577,814'Video data recording and reproduction using time slot allocation'2003 6,522,143'Birdcage RF coil employing an end ring resonance mode for quadrature operation in magnetic resonance imaging'2003 6,516,134'Data recording/reproducing method and apparatus'2003 6,512,181'Multilayer type printed-wiring board and method of measuring impedance of multilayer type printed-wiring board'2003 6,507,697'Data recording and reproduction apparatus, method and system for sending out data'2003 6,498,894'Video and/or audio data recording and/or reproduction apparatus'2002 6,494,094'Angular rate sensor'2002 6,469,607'Stationary induction apparatus'2002 6,461,337'Electrostatic microactuators, active three-dimensional microcatheters using same and method for making same'2002 6,462,563'Fingerprint reading device and method thereof'2002 6,453,117'Imaging system'2002 6,449,069'Optical transmission equipment and method of transmitting an optical signal'2002 6,441,615'Crossed-ladder RF coils for vertical field MRI systems'2002 6,422,126'Power steering apparatus'2002 6,411,770'Data recording method and apparatus'2002 6,401,551'Fingerprint reading device'2002 6,404,199'Quadrature RF coil for vertical field MRI systems'2002 6,393,962'Power steering apparatus'2002 6,374,258'Data recording and reproducing apparatus and method for recording and reproducing data from a non-linear recording medium'2002 6,349,349'System for linking a main control unit to data receiving and transmitting units and a first and second storage units by a network'2002 6,341,278'Recording and reproducing apparatus and method for accessing data stored on a randomly accessible recording medium, and for managing data thereon'2002 6,321,237'Recording and reproducing apparatus and method for accessing data stored on a randomly accessible recording medium, and for managing data thereon'2001 6,316,941'Open view quadrature birdcage coil'2001 6,292,619'Image editing system'2001 6,279,055'Data output device and data output method'2001 6,259,548'Micro-mirror device'2001 6,236,203'Super shielding of finite length structures in open magnetic and electric systems'2001 6,225,842'Control device with forced operation function and semiconductor integrated circuit device'2001 6,225,779'Power supply monitoring integrated circuit device for individually monitoring voltages of cells'2001 6,210,552'Oxygen sensor'2001 6,182,498'Oxygen sensor'2001 6,172,485'Power supply monitoring integrated circuit device and battery pack'2001 6,169,401'Flexible open quadrature highpass ladder structure RF surface coil in magnetic resonance imaging'2001 6,154,009'Power supply monitoring IC and battery pack'2000 6,130,985'Data recording/reproducing method and apparatus'2000 6,130,734'Color LCD having particular parameters for LC layer, retarder, color polarizer align layer'2000 6,119,144'Apparatus and method for information transfer between a video server and a general purpose computer or the like'2000 6,094,522'Video data recording and reproduction apparatus having a plurality of input/output control devices'2000 6,085,019'Apparatus and method for recording and reproducing video data to and from a record medium'2000 6,009,228'Parallel multiple terminal image editing system and improved image editing system for high speed editing and method thereof'1999 5,956,110'Liquid crystal display panel and display device'1999 5,945,810'Battery protective circuit'1999 5,933,570'Data recording and/or reproducing system'1999 5,930,816'Memory back-up apparatus and method and audio and/or video data recording and reproducing apparatus'1999 5,914,586'Power supply'1999 5,912,655'Display device'1999 5,897,631'Randomly accessible recording medium, and apparatus and method for managing data thereon'1999 5,896,387'Configuration method of multiplex conversion unit and multiplex conversion unit'1999 5,885,085'Drive-in interactive system'1999 5,828,841'Video signal recording and reproduction apparatus'1998 5,827,990'Karaoke apparatus applying effect sound to background video'1998 5,819,290'Data recording and management system and method for detecting data file division based on quantitative number of blocks'1998 5,815,489'Self-healing ring switch and method of controlling the same'1998 5,793,971'Video signal output apparatus having near video-on-demand function'1998 5,764,816'Image forming apparatus capable of converting the resolution'1998 5,757,806'Data multiplexing system having at least one low-speed interface circuit connected to a bus'1998 5,740,435'Data management apparatus and method for managing data of variable lengths recorded on a record medium'1998 5,717,663'Information data recording and reproduction apparatus'1998 5,708,406'Rotary actuator'1998 5,696,524'Gradative driving apparatus of liquid crystal display panel'1997 5,693,497'Process for expressing the hepatitis B virus antigen using a Saccharomyces cerevisiae transformant'1997 5,689,189'Technique for designing distributed radio frequency coils and distributed radio frequency coils designed thereby'1997 5,659,402'Image processing method and apparatus'1997 5,625,760'Image processor for performing volume rendering from voxel data by a depth queuing method'1997 5,619,224'Liquid crystal display panel driving device'1997 5,600,631'Self-healing ring switch and method of controlling the same'1997 5,519,176'Substrate and ceramic package'1996 5,486,473'A DNA coding for a Flavivirus antigen'1996 5,477,419'Method and apparatus for electrically connecting an electronic part to a circuit board'1995 5,475,676'Switch for self-healing ring'1995 5,473,749'Image processing system having plurality of processors acting on image data according to stored program from host computer'1995 5,452,307'Data multiplexing system having at least one low-speed interface circuit connected to a bus'1995 D0354353'Ultrasound diagnostic instrument'1995 5,319,794'Device for high-speed processing of information frames'1994 5,186,131'Distributor'1993 5,144,384'Automatic sheet feeder having means for resuming continuous copying after power stoppage'1992 5,127,642'Automatic document conveying device for image processing machine'1992 5,120,038'Automatic document conveying device for an image processing machine'1992 5,106,076'Sorter controller'1992 5,079,687'Multi-stage insulating transformer type high voltage generating apparatus having a connection structure'1992 5,060,923'Automatic document conveying device for an image processing machine'1991 4,992,744'Radio frequency linear accelerator control system'1991 4,993,013'Monitor system for multiplex equipment'1991 4,987,568'Monitor system for multiplex equipment'1991 4,891,601'Radio frequency multipole linear accelerator'1990 4,810,492'Flavivirus antigen'1989 4,668,094'Apparatus for measuring the three-dimensional shape of a solid object'1987 4,263,495'Method of splicing optical fibers by CO.sub.2 -laser'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2016Patents assigned to HITACHI LTD (16)· patent assignee history

1994–2011Patents assigned to SONY CORP (38)· patent assignee history

1994–2006Based in Kanagawa, JP· patent location history

1995–2018Patents assigned to FUJITSU LTD (41)· patent assignee history

1995–2020Based in Tokyo, JP· patent location history

1997–2016Patents assigned to SEIKO INSTR INC (15)· patent assignee history

1997–2016Based in Chiba, JP· patent location history

1999–2020Based in Kyoto, JP· patent location history

2001–2015Based in Highland Heights, OH, US· patent location history

2012–2016Patents assigned to FUJITA HIROYUKI (16)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJITSU LTD	41	1995–2018
SONY CORP	38	1994–2011
FUJITA HIROYUKIself	16	2012–2016
HITACHI LTD	16	1981–2016
SEIKO INSTR INC	15	1997–2016

Locations

Location	Patents	Span
Tokyo, JP	62	1995–2020
Kanagawa, JP	34	1994–2006
Kyoto, JP	15	1999–2020
Chiba, JP	15	1997–2016
Highland Heights, OH, US	15	2001–2015