Inventor
KAMEYAMA KENJI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “KAMEYAMA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
21 patentsUS6497488B1Dec 24, 2002
Illumination system and projector
RICOH KK80 citations98
US6320571B1Nov 20, 2001
Bistable liquid crystal display device
RICOH KK29 citations93
US7322700B2Jan 29, 2008
Image display apparatus
RICOH KK41 citations92
US6295140B1Sep 25, 2001
Document reading apparatus having a white platen roller
RICOH KK35 citations92
US6061042AMay 9, 2000
Liquid crystal display device
RICOH KK40 citations92
US5983054ANov 9, 1999
Method and image forming apparatus for preventing the use of unsuitable process cartridges
RICOH KK19 citations92
US5543945AAug 6, 1996
Method of driving an LCD employing combining two voltages which change polarity at different times in a frame
RICOH KK21 citations92
US5319479AJun 7, 1994
Deposited multi-layer device with a plastic substrate having an inorganic thin film layer
RICOH KK45 citations92
US4975338ADec 4, 1990
Thin film electroluminescence device
RICOH KK48 citations92
US5142192AAug 25, 1992
Thin film electroluminescent element
RICOH KK28 citations91
US4914348AApr 3, 1990
Electroluminescence multi-color display device
RICOH KK25 citations91
US7125121B2Oct 24, 2006
Image display apparatus
RICOH KK15 citations84
US7505714B2Mar 17, 2009
Image forming device
RICOH KK8 citations83
US5934661AAug 10, 1999
Friction paper-feed method and apparatus capable of preventing paper-feed failure caused by slippage
RICOH KK13 citations74
US5835232ANov 10, 1998
Image forming apparatus having recording head support
RICOH KK8 citations74
US4720436AJan 19, 1988
Electroluminescence devices and method of fabricating the same
RICOH KK17 citations73
US7733317B2Jun 8, 2010
Image display apparatus and alternative current drive method
RICOH KK2 citations63
US7057700B2Jun 6, 2006
Light deflection element, light deflection device and image display device
RICOH KK5 citations63
US5737089AApr 7, 1998
Image forming apparatus with a plotter cover which rotatably supports a platen roller
RICOH KK4 citations63
US5708517AJan 13, 1998
Image forming apparatus
RICOH KK3 citations63
US7551805B2Jun 23, 2009
Converting the resolution of an image using interpolation and displaying the converted image
RICOH KK2 citations62
RICOH CO LTD
4 patentsUS11143870B2Oct 12, 2021
Display apparatus and display method
RICOH CO LTD0 citations60
US11960096B2Apr 16, 2024
Head-mounted display device containing relay optical system between image display unit and light guide member and display system
RICOH CO LTD0 citations51
US11656461B2May 23, 2023
Head-mounted display device with adjuster
RICOH CO LTD0 citations50
US10942354B2Mar 9, 2021
Monocular image display device
RICOH CO LTD0 citations49