Inventor
Kenichi Hasegawa
Inventor
Kanagawa, JP
Overview
Patents· 120 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography44%
LOC1413%
G01RMeasuring electric variables7%
H04NPictorial communication, e.g. television4%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
H04QSelecting3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere1%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein1%
H04JMultiplex communication1%
PatentTitleYear
10,795,289Fixing device and image forming apparatus incorporating the same202010,114,322Fixing device and image forming apparatus201810,054,885Pressure and pressure relief device, fixing device, and image forming apparatus20189,715,201'Fixing device and image forming apparatus including a rotation load applicator'20179,501,011'Fixing device and image forming apparatus including same'20169,377,725'Fixing device and image forming apparatus incorporating same'20169,310,733'Fixing device and image forming apparatus including same'20169,256,172'Fixing device and image forming apparatus including same'20169,226,050'Transmission apparatus and transmission method'20159,188,912'Sheet guiding unit separating mechanism, fixing device with sheet guiding unit separating mechanism, and image forming apparatus with fixing device with sheet guiding unit separating mechanism'20159,128,426'Fixing device and image forming apparatus including same'20158,897,688'Fixing device and image forming apparatus'20148,843,040'Compressed-air sheet separation mechanism and image forming apparatus including same'20148,843,044'Fixing device and image forming apparatus incorporating same'20148,843,043'Fixing device and image forming apparatus incorporating same'20148,831,494'Fixing device and image forming apparatus including same'20148,811,837'Fixing device and image forming apparatus including same'20148,744,330'Fixing device having a plurality of heat sources and a plurality of temperature detectors and image forming apparatus including same'20148,744,331'Fixing device and image forming apparatus incorporating same'20148,737,878'Image forming apparatus including removable fixing device'20148,682,237'Fixing device and image forming apparatus including same'20148,660,474'Image forming apparatus having fixing device with air nozzle for separating sheet'20148,655,244'Fixing device and image forming apparatus incorporating same'20148,630,572'Fixing device and image forming apparatus including same'20148,615,175'Fixing unit and image forming apparatus including same'20138,606,135'Fixing device and image forming apparatus employing the fixing device'20138,600,276'Heat conduction unit, fixing device, and image forming apparatus'20138,594,549'Image forming apparatus incorporating a fixing device and contact member to reduce fixing member deformation'20138,588,670'Fixing device having a reflector and image forming apparatus incorporating same'20138,583,019'Fixing device and image forming apparatus incorporating same'20138,571,457'Fixing device and image forming apparatus incorporating same'20138,559,860'Fixing device and image forming apparatus including same'20138,555,285'Executing a general-purpose operating system as a task under the control of a real-time operating system'20138,553,238'Media separator, fixing device, and image forming apparatus'20138,532,553'Fixing device and image forming apparatus including same'20138,515,324'Fixing device and image forming apparatus employing the fixing device'20138,509,664'Image forming apparatus'20138,498,561'Fixing device and image forming apparatus incorporating same having a reinforcing member including first and second flanges'20138,472,855'Fixing device and image forming apparatus incorporating same'20138,463,168'Fixing device and image forming apparatus including same'20138,447,221'Fixing device and image forming apparatus incorporating same'20138,433,230'Image forming apparatus'20138,428,502'Belt-type fixing device and image forming apparatus using same'20138,428,501'Fixing device and image forming apparatus incorporating same'20138,422,901'Image fixing apparatus stably controlling a fixing temperature, and image forming apparatus using the same'20138,417,169'Fixing device and image forming apparatus incorporating same'20138,406,647'Fixing device including a radiation member to cool a fixing member and a heat conductive member'20138,401,448'Fixing device and image forming apparatus incorporating same'20138,401,414'Fixing device and image forming apparatus incorporating same'20138,385,804'Fixing device and image forming apparatus employing the fixing device'20138,364,052'Fixing device and image forming apparatus incorporating same'20138,337,658'Manufacturing method for composite material structural component for aircraft and its structural component'20128,311,469'Fixing device and image forming apparatus incorporating same'20128,249,491'Fixing device and image forming apparatus including same'20128,219,016'Fixing device and image forming apparatus incorporating same'20128,219,015'Fixing device and image forming apparatus incorporating same which includes a plate spring to press a low-friction sheet'20128,213,827'Fixing device, image forming apparatus incorporating same, and fixing method'20128,160,484'Fixing device and image forming apparatus incorporating same'20128,131,198'Image forming apparatus, fixing unit, and image forming method with improved heating mechanism'20128,064,798'Fixing device and image forming apparatus with heating member heated uniformly in circumferential direction'20117,963,488'Stand for a thin display'20117,925,177'Image fixing apparatus stably controlling a fixing temperature, and image forming apparatus using the same'2011D0626960'Display'2010D0625311'Display'20107,660,308'Transmission apparatus'20107,630,652'Image forming apparatus with enhanced maintainability'20097,621,500'Display holding device'20097,570,053'NMR measurement method'2009D0597042'Display'2009D0595715'Display'20097,515,850'Sheet conveying apparatus and image forming apparatus'2009D0582390'Speaker unit for computer display'2008D0580934'Computer display'2008D0578530'Computer display'20087,345,501'Electro-optical device, electronic apparatus, and mounting structure'2008D0554120'Computer display'20077,245,143'Electro-optical device, electronic apparatus, and mounting structure'20077,245,126'NMR method and apparatus'2007D0543982'Computer display'2007D0543535'Speaker unit for computer display'2007D0540321'Computer display'20077,112,963'NMR measurement method'20067,070,182'Sheet separating mechanism, fixing device, and image forming apparatus'20067,069,195'Magnetic field gradient coil assembly and method of designing same'2006D0509504'Computer display'2005D0507793'Computer display'20056,914,430'NMR probe'2005D0506466'Computer display'20056,859,461'Orderwire controller'2005D0498756'Computer display'20046,794,874'Multiple tuning circuit and probe having multiple tuning circuit for NMR spectrometer'20046,771,476'Circuit protector'20046,724,985'Hot-water heating apparatus for electric vehicle and hybrid vehicle'20046,686,741'Multiple-tuned circuit and probe for NMR spectrometer'20046,653,836'Resonance signal detector'20036,591,081'Fixing apparatus including toner releasing agent applying device and image forming apparatus including the same fixing apparatus'2003D0469091'Computer display'2003D0468739'Computer display'20036,496,666'Image forming apparatus and method having an improved heating mechanism in fixing device'2002D0458601'Portion of computer display'2002D0458602'Computer display'20026,357,811'Coupling structure of threaded member and synthetic resin part for vehicle'20026,329,820'NMR probe'20016,131,009'Fusing device, method and computer readable medium for an image forming apparatus using controlled rotation of fusing and pressure rollers'20006,102,407'Joint seal and assembly method thereof'20006,044,938'Dual-mode drum brake having parking lever pivotable about an axis perpendicular to backing plate'20005,623,208'Z-axis magnetic field gradient coil structure for magnetic resonance system'19975,557,425'Facsimile device for use in ISDN and method of controlling same'19965,477,340'Facsimile terminal equipment having communication speed switch'19955,467,079'Incoming message processing method in plurality of terminal equipments and terminal equipment executing said method'19955,466,555'Releasing composition and binder resin composition for electrophotographic toner, and toner containing the same'19955,400,123'Image forming apparatus capable of erasing an image recorded in a sheet'19955,208,806'ISDN terminal equipment operating with circuit switching mode and packet switching mode'19935,166,964'Method and apparatus for measuring density'19924,635,292'Image processor'19874,635,231'Semiconductor memory with constant readout capability'19874,531,155'Circuit for independently adjusting frequency deviation of a VCO'19854,385,319'Synchronization signal separating circuit'19834,240,038'Preamplifier'19804,221,317'Apparatus for controlling the feed of yarn'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2010Based in Tokyo, JP· patent location history
2000–2013Based in Kawasaki, JP· patent location history
2003–2010Based in Minato-ku, JP· patent location history
2006–2020Based in Kanagawa, JP· patent location history
2011–2020Patents assigned to RICOH CO LTD (57)· patent assignee history
2011–2020Patents assigned to HASEGAWA KENICHI (55)· patent assignee history
2011–2016Patents assigned to SHINSHI AKIRA (33)· patent assignee history
2011–2016Patents assigned to YOSHINAGA HIROSHI (33)· patent assignee history
2011–2016Based in Atsugi, JP· patent location history
2012–2016Patents assigned to FUJIMOTO IPPEI (26)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 57 | 2011–2020 |
| HASEGAWA KENICHIself | 55 | 2011–2020 |
| SHINSHI AKIRA | 33 | 2011–2016 |
| YOSHINAGA HIROSHI | 33 | 2011–2016 |
| FUJIMOTO IPPEI | 26 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 32 | 2006–2020 |
| Atsugi, JP | 26 | 2011–2016 |
| Tokyo, JP | 24 | 1980–2010 |
| Kawasaki, JP | 8 | 2000–2013 |
| Minato-ku, JP | 7 | 2003–2010 |