Inventor · disambiguated record
Masayuki Nishikawa
Also filed as: NISHIKAWA MASAYUKI
36 granted patents·4 pending applications·475 citations·filing 1988–2009
97Inventor score
Top patents by PatentIndex Score
40 records- 0196US5139911AElectrophotographic photoreceptor with two part surface layerFUJI XEROX CO LTD·Filed 1989·Granted Aug 18, 1992·67 cites·5 claims
- 0293US5393629AElectrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1993·Granted Feb 28, 1995·55 cites·20 claims
- 0387US6342978B1Pickup device for optical diskSHARP KK·Filed 2000·Granted Jan 29, 2002·24 cites·10 claims
- 0482US6778472B2Optical pickup with switchable optical systems along an optical pathSHARP KK·Filed 2001·Granted Aug 17, 2004·16 cites·7 claims
- 0581US5262262AElectrophotographic photoreceptor having conductive layer and amorphous carbon overlayerFUJI XEROX CO LTD·Filed 1991·Granted Nov 16, 1993·27 cites·18 claims
- 0677US8574798B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the sameIWANAGA TAKESHI·Filed 2009·Granted Nov 5, 2013·5 cites·16 claims
- 0777US5834761AImage input apparatus having a spatial filter controllerSHARP KABUSHIKI KAISAH·Filed 1997·Granted Nov 10, 1998·62 cites·17 claims
- 0875US7906261B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the sameFUJI XEROX CO LTD·Filed 2008·Granted Mar 15, 2011·4 cites·17 claims
- 0975US6268096B1Titanyl phthalocyanine crystal and electrophotographic photoreceptor using the sameFUJI XEROX CO LTD·Filed 1995·Granted Jul 31, 2001·13 cites·3 claims
- 1074US6307687B1Optical pickup device capable of accurate tracking with simple structureSHARP KK·Filed 2000·Granted Oct 23, 2001·10 cites·6 claims
- 1173US7508605B2Zoom lens unit and image pickup deviceSHARP KK·Filed 2007·Granted Mar 24, 2009·6 cites·8 claims
- 1268US8014082B2Lens unitSHARP KK·Filed 2007·Granted Sep 6, 2011·4 cites·14 claims
- 1368US5578156AMethod of mounting a lens on a light emitting diodeSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Nov 26, 1996·34 cites·11 claims
- 1465US5786901AImage shifting mechanism and imaging deviceSHARP KK·Filed 1997·Granted Jul 28, 1998·30 cites·13 claims
- 1564US5637861AImaging apparatus having improved resolution due to control of an inclination angle of a refracting plate in more than one directionSHARP KK·Filed 1995·Granted Jun 10, 1997·28 cites·22 claims
- 1664US5440029ATitanyl phthalocyanine crystalFUJI XEROX CO LTD·Filed 1993·Granted Aug 8, 1995·6 cites·2 claims
- 1759US4960662APositively and negatively chargeable electrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1989·Granted Oct 2, 1990·11 cites·5 claims
- 1858US8142969B2Electrophotographic photoreceptor, process cartridge and image forming apparatusEZUMI TETSUYA·Filed 2008·Granted Mar 27, 2012·2 cites·11 claims
- 1958US7035173B2Optical pickup apparatusSHARP KK·Filed 2001·Granted Apr 25, 2006·3 cites·6 claims
- 2057US8300331B2Lens unit and lens driving apparatusKAWAMUKI RYOHHEI·Filed 2006·Granted Oct 30, 2012·2 cites·17 claims
- 2156US4932859AElectrophotographic photoreceptor having doped and/or bilayer amorphous silicon photosensitive layerFUJI XEROX CO LTD·Filed 1988·Granted Jun 12, 1990·10 cites·15 claims
- 2252US7436606B2Optical component module and camera moduleSHARP KK·Filed 2006·Granted Oct 14, 2008·0 cites·6 claims
- 2349US5094929AElectrophotographic photoreceptor with amorphous carbon containing germaniumFUJI XEROX CO LTD·Filed 1989·Granted Mar 10, 1992·7 cites·16 claims
- 2449US2011043684A1Imaging device and method of producing the sameSHARP KK·Filed 2007·Application pending·0 cites
- 2548US2010001175A1Imaging deviceKAWAMUKI RYOHEI·Filed 2007·Application pending·0 cites
- 2645US4923773AMultilayered electrophotographic photoreceptor of amorphous silicon having a surface layer of nitrogenated amorphous siliconFUJI XEROX CO LTD·Filed 1988·Granted May 8, 1990·6 cites·18 claims
- 2744US5008170APhotoreceptor for electrophotographyFUJI XEROX CO LTD·Filed 1989·Granted Apr 16, 1991·6 cites·6 claims
- 2843US7643744B2Lens driving device and image pickup device using the sameSHARP KK·Filed 2006·Granted Jan 5, 2010·0 cites·5 claims
- 2943US5059501AElectrophotographic photoreceptor with overlayer of amorphous Si with NFUJI XEROX CO LTD·Filed 1989·Granted Oct 22, 1991·5 cites·9 claims
- 3042US8233074B2Lens unit and imaging deviceNISHIKAWA MASAYUKI·Filed 2007·Granted Jul 31, 2012·0 cites·2 claims
- 3142US4965154AElectrophotographic photoreceptor having surface layersFUJI XEROX CO LTD·Filed 1989·Granted Oct 23, 1990·5 cites·13 claims
- 3242US4854030AProcess of manufacturing a hose fittingTOYODA GOSEI KK·Filed 1988·Granted Aug 8, 1989·7 cites·2 claims
- 3342US2009214967A1Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the sameFUJI XEROX CO LTD·Filed 2008·Application pending·0 cites
- 3440US4959289AElectrophotographic element having a surface layer and method for producing sameFUJI XEROX CO LTD·Filed 1989·Granted Sep 25, 1990·4 cites·7 claims
- 3539US2006014383A1Method of producing semiconductor single crystal wafer and laser processing device used thereforOTSUKI MAKOTO·Filed 2004·Application pending·0 cites
- 3637US5075187AElectrophotographic photoreceptor with oxide of Al, Zr or Ta as charge transport layerFUJI XEROX CO LTD·Filed 1990·Granted Dec 24, 1991·4 cites·9 claims
- 3736US5082760AMethod for preparing an electrophotographic photoreceptor having a charge transporting layer containing aluminum oxideFUJI XEROX CO LTD·Filed 1988·Granted Jan 21, 1992·5 cites·15 claims
- 3832US4965164AMethod for producing electrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1989·Granted Oct 23, 1990·1 cites·9 claims
- 3931US5459009AProcess for making an electrophotographic photoreceptor having protective layerFUJI XEROX CO LTD·Filed 1990·Granted Oct 17, 1995·1 cites·4 claims
- 4030US4927190AHose fittingTOYODA GOSEI KK·Filed 1989·Granted May 22, 1990·5 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →