Inventor
Kazuhiro Ichikawa
Inventor
Nagano, JP
Overview
Patents· 42 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography32%
G01RMeasuring electric variables7%
H01HElectric switches7%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
G06FElectric digital data processing5%
G11BInformation storage based on relative movement between record carrier and transducer5%
A61BDiagnosis3%
B82YSpecific uses or applications of nanostructures3%
LOC123%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
9,482,721'Electric power source circuit and abnormality diagnosis system'20169,327,548'Wheel for motorcycle'20168,929,185'Optical disc recording device and optical disc recording method'20158,896,311'Measurement device and measurement method'20148,737,185'Optical disc device and optical disc reproduction method'20148,722,420'Method for detecting an endogenous biomolecule'2014D0700566'Wheel for motorcycle'2014D0693282'Wheel for motorcycle'20138,577,213'Lens driving device, autofocus camera and camera-equipped mobile terminal'20138,532,740'Measurement device and measurement method'20138,453,034'Error detection/correction circuit, memory controller and semiconductor memory apparatus'20138,448,050'Memory system and control method for the same'20137,853,378'Control device for electrical power steering system'20107,830,642'Disc apparatus'20107,783,234'Developer cartridge, image forming apparatus, and shutter device'20107,324,232'Printer, printer setting method and corresponding program, and cartridge'20087,231,160'Printing device and printing method'20077,177,556'Image formation device and recording agent cartridge attached thereto'20077,087,037'Syringe'20067,043,167'Image formation device and image formation method that selectively adapts a process of fixing an image on a medium'20067,013,101'Cartridge recycling information apparatus, corresponding method, and cartridge to be recycled'20066,983,111'Image formation device and image formation method'20066,769,576'Delivery container'20046,605,401'Toner and development unit and image forming apparatus using the same'20036,573,814'Electromagnetic relay and circuit substrate comprising the same'20036,369,191'Process for controlling a particle size of polyarylene sulfide and polyarylene sulfide thus produced'20026,358,654'Toner and development unit and image forming apparatus using the same'20026,359,537'Electromagnetic relay, method of adjusting the same, and method of assembling the same'20026,336,022'Developing unit'20026,295,433'Developing unit having a conveying fin for loading a supply roller with toner'20016,226,484'Developing unit using specific developer composition'20016,198,893'Image forming apparatus having a plurality of developing units'20016,192,209'Developing unit'20016,163,674'Developing unit having developing roller with restraining blade'20006,151,474'Developing unit using elastic supply roller'20006,146,802'Toner and development unit and image forming apparatus using the same'20006,094,554'Developing unit having developing roller with specific side surface roughness'20005,893,665'Image forming apparatus'19995,894,253'Electromagnetic relay'19995,789,533'Polyarylene sulfide, a process for the preparation thereof and a composition comprising the same'19985,697,033'Image forming apparatus with film transfer member'19975,475,081'Process for controlling a particle size of polyarylene sulfide and polyarylene sulfide thus produced'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2010Patents assigned to SEIKO EPSON CORP (20)· patent assignee history
1997–2008Based in Nagano, JP· patent location history
1998–2013Based in Kanagawa, JP· patent location history
1999–2006Based in Tokyo, JP· patent location history
2010–2015Patents assigned to FUNAI ELECTRIC CO (3)· patent assignee history
2013–2016Patents assigned to ICHIKAWA KAZUHIRO (8)· patent assignee history
2013–2016Patents assigned to KAWASAKI HEAVY IND LTD (3)· patent assignee history
2013–2014Patents assigned to UTSUMI HIDEO (3)· patent assignee history
2013–2016Based in Kobe, JP· patent location history
2013–2014Based in Fukuoka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKO EPSON CORP | 20 | 1997–2010 |
| ICHIKAWA KAZUHIROself | 8 | 2013–2016 |
| FUNAI ELECTRIC CO | 3 | 2010–2015 |
| KAWASAKI HEAVY IND LTD | 3 | 2013–2016 |
| UTSUMI HIDEO | 3 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nagano, JP | 19 | 1997–2008 |
| Tokyo, JP | 5 | 1999–2006 |
| Kanagawa, JP | 4 | 1998–2013 |
| Kobe, JP | 3 | 2013–2016 |
| Fukuoka, JP | 3 | 2013–2014 |