Inventor
Kenji Oshima
Inventor
Tokyo, JP
Overview
Patents· 61 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters18%
B41LApparatus or devices for manifolding, duplicating or printing for office or other commercial purposes10%
E02FDredging7%
F15BSystems acting by means of fluids in general7%
LOC147%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
B66BElevators5%
Y10TTechnical subjects covered by former us classification4%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
C04BLime, magnesia3%
PatentTitleYear
10,604,913Control system, work machine, and control method202010,407,865Control system, work machine, and control method201910,407,875Control system and work machine2019D0856413Printer201910,344,781Control system, work machine, and control method2019D0843444Printer20199,944,100Liquid ejecting apparatus20189,944,101Liquid ejecting apparatus2018D0815196Printer20189,810,246'Hydraulic drive system'20179,709,076'Hydraulic drive system'20179,463,654'Recording apparatus'20169,328,480'Hydraulic excavator'20169,315,031'Ink jet recording apparatus'20169,283,765'Liquid ejecting apparatus'20169,150,025'Liquid ejecting apparatus'20158,851,640'Ink jet recording apparatus'20148,746,858'Recording apparatus'20148,721,065'Ink jet printer and printing method'20148,675,033'Recording apparatus'20148,564,852'Complex apparatus'20138,490,966'Recording medium support device and recording apparatus'20138,277,018'Tilt angle maintaining apparatus and recording apparatus'2012D0665015'Printer'2012D0665016'Printer'2012D0665014'Printer'20128,162,474'Image forming apparatus'20128,123,316'Inkjet image-forming apparatus and method for printing'20128,011,298'System for supplying ink and ink container'20117,816,893'Control apparatus for automotive alternator with function of initialization state detection'20107,755,332'Control apparatus for automotive alternator with function of initialization state detection'2010D0614693'Multi function printer'20107,602,152'Vehicle-use power generation control apparatus'2009D0600745'Multi-function printer'20097,576,520'Power generation control device for vehicle generator'20097,536,950'Stencil printing system with print pressure controlling means'20097,530,304'Stencil printing system with rotational speed control of the print drum'20097,523,702'Method and system for controlling thermal head and stencil material roll'20097,441,498'Image forming system'20087,393,095'Ink jet recording apparatus and ink jet recording method'20087,344,213'Method and system for calculating ink residue and ink container'20087,171,895'Stencil material roll'20076,854,837'Ink supply system and ink supply method for stencil printer and ink container'20056,846,541'Optical disc and process for the production of lavel therefor'20056,390,428'Tube core and holders for stencil sheet roll'20026,382,097'Stencil printing machine and a wrinkle preventing method on a stencil sheet of the stencil printing machine'20026,158,553'Curtailed operation of multiple-wound induction motor following inverter failure'20005,517,913'Stencil printing device using a sensor for detecting an ink type'19965,400,204'System for detecting a breakage of a power cable for an elevator system'19955,376,599'Carbon fiber reinforced silicon nitride based nanocomposite material and method for preparing same'19945,294,387'Method of producing fiber-reinforced and particle-dispersion reinforced mullite composite material'19945,241,255'Failure detector for regeneration power absorbing means'19935,130,617'Inverter control device for driving an elevator'19925,124,959'Hour chime clock'19925,077,243'Fiber-reinforced and particle-dispersion reinforced mullite composite material and method of producing the same'19914,995,478'Start compensation device for elevators'19914,993,006'Device for turning decoration for timepiece'19914,987,320'Multiphase multiplier'19914,902,954'Alternating current motor control apparatus'19904,095,130'Synchronous motor'19784,051,744'Gear mechanism for preventing reverse rotation'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2020Based in Tokyo, JP· patent location history
1990–2017Patents assigned to OSHIMA KENJI (13)· patent assignee history
1991–2000Patents assigned to OTIS ELEVATOR CO (6)· patent assignee history
1996–2014Patents assigned to RISO KAGAKU CORP (13)· patent assignee history
2002–2014Based in Ibaraki, JP· patent location history
2008–2011Based in Amimachi, JP· patent location history
2010–2019Patents assigned to SEIKO EPSON CORP (19)· patent assignee history
2012–2019Based in Nagano, JP· patent location history
2014–2018Based in Minowa-machi, JP· patent location history
2016–2020Patents assigned to KOMATSU MFG CO LTD (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKO EPSON CORP | 19 | 2010–2019 |
| OSHIMA KENJIself | 13 | 1990–2017 |
| RISO KAGAKU CORP | 13 | 1996–2014 |
| KOMATSU MFG CO LTD | 7 | 2016–2020 |
| OTIS ELEVATOR CO | 6 | 1991–2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 10 | 1977–2020 |
| Nagano, JP | 7 | 2012–2019 |
| Ibaraki, JP | 7 | 2002–2014 |
| Minowa-machi, JP | 6 | 2014–2018 |
| Amimachi, JP | 6 | 2008–2011 |