Inventor

Akira Shimada

Inventor

Hitachi, JP

Overview

1980–2021

Patent span

Physics

Primary field (CPC G)

Patents· 91 as inventor

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

G03Gprimary

G03GElectrography22%

H04NPictorial communication, e.g. television6%

G05BControl or regulating systems in general6%

H02NElectric machines not otherwise provided for6%

B25JManipulators4%

G02BOptical elements, systems or apparatus3%

G11BInformation storage based on relative movement between record carrier and transducer3%

H10KOrganic electric solid-state devices3%

G06KGraphical data reading2%

H01LSemiconductor devices2%

PatentTitleYear

11,012,004Vibration actuator and electronic device including the same2021 10,793,718Resin composition, and sheet, laminate, power semiconductor device, and plasma processing apparatus including the same, and method of producing semiconductor using the same2020 10,439,518Vibration-type actuator, driving method for vibration-type actuator, and electronic apparatus equipped with vibration-type actuator2019 10,002,813Adhesive composition and adhesive sheet, and hardened article and semiconductor device using same2018 9,910,274'Driving method for vibration body, vibration driving device, and image pickup apparatus'2018 9,860,398'Information processing apparatus that creates other documents from read document'2018 9,813,596'Vibration-type actuator, interchangeable lens, image pickup apparatus, and automatic stage'2017 9,773,425'Choice question creating apparatus'2017 9,664,820'Method for manufacturing optical lens'2017 9,401,667'Vibration-type driving device'2016 9,342,016'Image forming apparatus and image forming system'2016 9,300,228'Vibratory drive apparatus using lubricant between elastic member and piezoelectric member'2016 9,146,578'Coating apparatus, method for producing electrophotographic photosensitive member and method for mass-producing electrophotographic photosensitive members'2015 9,095,882'Piezoelectric device, dust removing apparatus, and imaging apparatus'2015 9,082,444'Magnetic recording medium and method of manufacturing a magnetic recording medium'2015 9,007,509'Foreign substance removing device and image pickup device'2015 8,795,790'Magnetic recording medium and magnetic recording medium manufacturing method'2014 8,698,375'Vibration wave driving apparatus'2014 8,614,536'Piezoelectric element, and piezoelectric actuator and vibration wave motor including piezoelectric element'2013 8,592,061'Magnetic recording medium with controlled grain diameters'2013 8,551,627'Magnetic disk and method of manufacturing the same'2013 8,073,369'Development device transferring only a toner layer to a developing roller and image apparatus using the same'2011 7,749,667'Image forming method, and electrophotographic apparatus making use of the image forming method'2010 7,718,331'Electrophotographic photosensitive member with depressed portions, process cartridge holding the electrophotographic photosensitive member and electrophotographic apparatus with the electrophotographic photosensitive member'2010 7,622,238'Process for producing electrophotographic photosensitive member'2009 7,556,901'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2009 7,551,878'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'2009 7,534,534'Electrophotographic Photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2009 7,226,711'Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'2007 7,215,896'Image forming apparatus and method of detecting the detection characteristics of a reflection density sensor'2007 7,186,489'Electrophotographic photosensitive member, electrophotographic photosensitive member manufacturing process, process cartridge, and electrophotographic apparatus'2007 7,142,930'Disturbance estimated type control system, gas compressor control system and method of designing a disturbance estimated type control system'2006 7,084,566'Organic light emitting element with insulation film and metal reflection film'2006 6,909,232'Organic light emitting element and method of producing the same'2005 6,891,630'Image recording method and image recording apparatus'2005 6,852,400'Endless belt electrophotography, process for producing the endless belt, and image forming apparatus having the endless belt'2005 6,787,991'Organic light emitting element and method of producing the same'2004 6,760,564'Picture image forming apparatus with intermediate transfer belt trained around two rollers of different diameter'2004 6,737,133'Electrophotographic seamless belt, and electrophotographic apparatus having the electrophotographic seamless belt'2004 6,697,586'Photoconductor unit and image forming system'2004 6,674,989'Endless belt with serpentine motion preventing member and image forming apparatus including same'2004 6,615,600'Controlling apparatus and controlling method for mode change type refrigerating system'2003 6,592,803'Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship'2003 6,569,588'Electrophotographic toner, production method thereof and electrophotographic image forming system'2003 6,563,261'Organic light emitting element and method of producing the same'2003 6,501,925'Photoconductor unit and image forming system'2002 6,487,387'Full-color image forming apparatus with belt-shaped transfer member'2002 6,381,428'Photoconductor unit and image forming system'2002 6,324,134'Disk recording and reproducing apparatus'2001 6,303,072'Process of making an endless belt'2001 6,298,279'CAD/CAM apparatus and machining apparatus for processing position/force information'2001 6,294,890'Robot controller'2001 6,276,149'Air conditioner'2001 6,275,778'Location-force target path creator'2001 6,253,120'Position and/or force controlling apparatus using sliding mode decoupling control'2001 6,202,428'Air conditioner'2001 6,163,271'Key-less entry system'2000 6,144,830'Intermediate transfer member and electrophotographic apparatus including same'2000 6,133,691'Organic light emitting element with resonant structure'2000 6,094,556'Intermediate transfer member and image forming apparatus'2000 6,078,773'Image forming apparatus and intermediate transfer member'2000 5,995,794'Image forming apparatus and intermediate transfer belt'1999 5,978,638'Intermediate transfer belt and image forming apparatus adopting the belt'1999 5,963,711'Watch outer case polishing apparatus and general purpose polishing apparatus'1999 5,729,267'Image forming apparatus having image transfer with toner cleaning function'1998 5,695,898'Electrophotographic photosensitive member, electrophotographic apparatus and device unit having it'1997 5,625,857'Image forming apparatus which measures deposit amounts of toner'1997 5,488,461'Electrophotographic photosensitive member and electrophotographic apparatus using the same'1996 5,468,584'Electrophotographic photosensitive member having intermediate layer containing fine powder particles of tin oxide containing phosphorous and apparatus employing same'1995 5,345,301'Image fixing device and electrophotographic apparatus incorporated with such device'1994 5,291,254'Electrophotographic recording apparatus'1994 5,270,827'Optical recording system for controlling recording light quantity based on pixel patterns in an image'1993 5,239,248'Servo control system'1993 5,123,082'Image information recorder having a resolution density transformation device'1992 5,115,418'Servo control apparatus'1992 5,113,226'Image transfer apparatus'1992 5,104,336'Flat cable connector'1992 5,105,016'Bis(cyclohexylphenol) compounds and their use'1992 5,102,289'Damper device for precision assembling robot'1992 5,096,873'Thermosensitive recording sheet'1992 5,091,683'Servo control apparatus'1992 5,010,497'Image information recorder having a resolution density transformation device'1991 4,994,257'Method for purifying high-temperature reducing gas'1991 4,987,067'Maltooligosaccharide derivatives and reagents for determination of amylase activity'1991 4,982,010'Method of producing 4-biphenyl p-tolyl ether'1991 4,980,625'Apparatus and method for servo control system'1990 4,896,173'Data printer'1990 4,734,060'Connector device'1988 4,487,748'Process for treating exhaust gases'1984 4,413,285'Facsimile apparatus'1983 4,190,137'Apparatus for deicing of trolley wires'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2006Patents assigned to HITACHI LTD (21)· patent assignee history

1983–2007Based in Hitachi, JP· patent location history

1984–2015Based in Kawasaki, JP· patent location history

1988–2017Based in Tokyo, JP· patent location history

1990–2003Patents assigned to SEIKO INSTR INC (10)· patent assignee history

1995–2021Patents assigned to CANON KK (33)· patent assignee history

1999–2005Based in Shizuoka, JP· patent location history

2011–2015Patents assigned to SHIMADA AKIRA (8)· patent assignee history

2013–2015Patents assigned to WD MEDIA SINGAPORE PTE LTD (4)· patent assignee history

2014–2021Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	33	1995–2021
HITACHI LTD	21	1983–2006
SEIKO INSTR INC	10	1990–2003
SHIMADA AKIRAself	8	2011–2015
WD MEDIA SINGAPORE PTE LTD	4	2013–2015

Locations

Location	Patents	Span
Hitachi, JP	22	1983–2007
Tokyo, JP	14	1988–2017
Saitama, JP	8	2014–2021
Shizuoka, JP	8	1999–2005
Kawasaki, JP	5	1984–2015