Inventor
NISHIKAWA MASAYUKI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “NISHIKAWA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI XEROX CO LTD
18 patentsUS5393629AFeb 28, 1995
Electrophotographic photoreceptor
FUJI XEROX CO LTD55 citations96
US5139911AAug 18, 1992
Electrophotographic photoreceptor with two part surface layer
FUJI XEROX CO LTD67 citations96
US5262262ANov 16, 1993
Electrophotographic photoreceptor having conductive layer and amorphous carbon overlayer
FUJI XEROX CO LTD27 citations90
US6268096B1Jul 31, 2001
Titanyl phthalocyanine crystal and electrophotographic photoreceptor using the same
FUJI XEROX CO LTD13 citations73
US5440029AAug 8, 1995
Titanyl phthalocyanine crystal
FUJI XEROX CO LTD6 citations73
US5094929AMar 10, 1992
Electrophotographic photoreceptor with amorphous carbon containing germanium
FUJI XEROX CO LTD7 citations73
US4960662AOct 2, 1990
Positively and negatively chargeable electrophotographic photoreceptor
FUJI XEROX CO LTD11 citations73
US4932859AJun 12, 1990
Electrophotographic photoreceptor having doped and/or bilayer amorphous silicon photosensitive layer
FUJI XEROX CO LTD10 citations71
US7906261B2Mar 15, 2011
Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the same
FUJI XEROX CO LTD4 citations63
US4959289ASep 25, 1990
Electrophotographic element having a surface layer and method for producing same
FUJI XEROX CO LTD4 citations63
US5082760AJan 21, 1992
Method for preparing an electrophotographic photoreceptor having a charge transporting layer containing aluminum oxide
FUJI XEROX CO LTD5 citations62
US5075187ADec 24, 1991
Electrophotographic photoreceptor with oxide of Al, Zr or Ta as charge transport layer
FUJI XEROX CO LTD4 citations62
US5059501AOct 22, 1991
Electrophotographic photoreceptor with overlayer of amorphous Si with N
FUJI XEROX CO LTD5 citations62
US4923773AMay 8, 1990
Multilayered electrophotographic photoreceptor of amorphous silicon having a surface layer of nitrogenated amorphous silicon
FUJI XEROX CO LTD6 citations62
US4965154AOct 23, 1990
Electrophotographic photoreceptor having surface layers
FUJI XEROX CO LTD5 citations61
US5008170AApr 16, 1991
Photoreceptor for electrophotography
FUJI XEROX CO LTD6 citations60
US5459009AOct 17, 1995
Process for making an electrophotographic photoreceptor having protective layer
FUJI XEROX CO LTD1 citations52
US4965164AOct 23, 1990
Method for producing electrophotographic photoreceptor
FUJI XEROX CO LTD1 citations52
SHARP KK
10 patentsUS6342978B1Jan 29, 2002
Pickup device for optical disk
SHARP KK24 citations92
US5786901AJul 28, 1998
Image shifting mechanism and imaging device
SHARP KK30 citations92
US5637861AJun 10, 1997
Imaging apparatus having improved resolution due to control of an inclination angle of a refracting plate in more than one direction
SHARP KK28 citations92
US6778472B2Aug 17, 2004
Optical pickup with switchable optical systems along an optical path
SHARP KK16 citations84
US6307687B1Oct 23, 2001
Optical pickup device capable of accurate tracking with simple structure
SHARP KK10 citations74
US8014082B2Sep 6, 2011
Lens unit
SHARP KK4 citations63
US7508605B2Mar 24, 2009
Zoom lens unit and image pickup device
SHARP KK6 citations63
US7035173B2Apr 25, 2006
Optical pickup apparatus
SHARP KK3 citations63
US7436606B2Oct 14, 2008
Optical component module and camera module
SHARP KK0 citations51
US7643744B2Jan 5, 2010
Lens driving device and image pickup device using the same
SHARP KK0 citations42