Inventor · disambiguated record
Ryosaku Igarashi
Also filed as: IGARASHI RYOSAKU
32 granted patents·1 pending application·312 citations·filing 1990–2014
96Inventor score
Top patents by PatentIndex Score
33 records- 0195US6020426ACharge-transporting copolymer, method of forming charge-transporting copolymer, electrophotographic photosensitive body, and electrophotographic deviceFUJI XEROX CO LTD·Filed 1997·Granted Feb 1, 2000·83 cites·21 claims
- 0293US5393629AElectrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1993·Granted Feb 28, 1995·55 cites·20 claims
- 0382US7867684B2Liquid developer, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2009·Granted Jan 11, 2011·6 cites·16 claims
- 0482US5456998APhotoconductive imaging members containing alkoxy-bridged metallophthalocyanine dimersXEROX CORP·Filed 1994·Granted Oct 10, 1995·26 cites·23 claims
- 0581US5643703AHydroxygallium phthalocyanine crystal, process for preparing same, and electrophotographic photoreceptor comprising sameFUJI XEROX CO LTD·Filed 1995·Granted Jul 1, 1997·16 cites·1 claims
- 0680US8741515B2Image holding member for image forming apparatus, process cartridge, and image forming apparatusHIROSE HIDEKAZU·Filed 2012·Granted Jun 3, 2014·2 cites·3 claims
- 0778US8658338B2Toner, liquid developer, dry developer, developer cartridge, process cartridge, image forming apparatus, and image forming methodHORIBA KOJI·Filed 2012·Granted Feb 25, 2014·2 cites·13 claims
- 0876US5508395AHydroxygallium phthalocyanine crystal, process for preparing sameFUJI XEROX CO LTD·Filed 1994·Granted Apr 16, 1996·10 cites·7 claims
- 0975US5759726AElectrographic photosensitive memberFUJI XEROX CO LTD·Filed 1997·Granted Jun 2, 1998·15 cites·21 claims
- 1075US5604064ACharge-transporting polymer and organic electronic device using the sameFUJI XEROX CO LTD·Filed 1995·Granted Feb 18, 1997·25 cites·7 claims
- 1167US8741527B2Liquid developer, developer cartridge, process cartridge, image forming apparatus, and image forming methodINABA YOSHIHIRO·Filed 2011·Granted Jun 3, 2014·1 cites·7 claims
- 1266US5834146AElectrophotographic photoreceptor containing uniform and nonuniform charge transporting layersFUJI XEROX CO LTD·Filed 1996·Granted Nov 10, 1998·17 cites·19 claims
- 1364US5545733AMethod for preparing hydroxygallium phthalocyanine crystals and electrophotographic photoreceptor using the crystalsFUJI XEROX CO LTD·Filed 1994·Granted Aug 13, 1996·7 cites·14 claims
- 1463US5942361AElectrophotographic photosensitive member having S-type photo-induced potential decay and electrophotographic apparatusFUJI XEROX CO LTD·Filed 1997·Granted Aug 24, 1999·15 cites·30 claims
- 1561US9188886B2Image holding member for image forming apparatus, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2014·Granted Nov 17, 2015·0 cites·12 claims
- 1660US8090299B2Developer supply device, process cartridge, and image forming apparatusMORI KEITARO·Filed 2008·Granted Jan 3, 2012·2 cites·4 claims
- 1758US7973118B2Ink receiving particles, method for producing the same, and curable resin dispersion compositionFUJI XEROX CO LTD·Filed 2009·Granted Jul 5, 2011·0 cites·19 claims
- 1858US5495049ATriarylamine compounds useful in electrophotographic photoreceptorsFUJI XEROX CO LTD·Filed 1994·Granted Feb 27, 1996·9 cites·5 claims
- 1954US8095027B2Image forming device and process cartridgeMORI KEITARO·Filed 2008·Granted Jan 10, 2012·1 cites·16 claims
- 2053US8304154B2Particle dispersion liquid, particles, particle dispersion liquid cartridge, process cartridge, image forming apparatus, and image forming methodKOBAYASHI TAKAKO·Filed 2009·Granted Nov 6, 2012·1 cites·19 claims
- 2151US8475984B1Image holding member for image forming apparatus, process cartridge, and image forming apparatusHIROSE HIDEKAZU·Filed 2012·Granted Jul 2, 2013·0 cites·6 claims
- 2250US8129084B2Liquid developer, method for producing liquid developer, and image forming apparatusINABA YOSHIHIRO·Filed 2009·Granted Mar 6, 2012·0 cites·20 claims
- 2349US8673531B2Liquid developer, process cartridge, image forming apparatus, and image forming methodINABA YOSHIHIRO·Filed 2011·Granted Mar 18, 2014·0 cites·8 claims
- 2448US8563209B2Liquid developer, developer cartridge, image forming method, and image forming apparatusHORIBA KOJI·Filed 2011·Granted Oct 22, 2013·0 cites·9 claims
- 2547US6002901AElectrophotographic photoreceptor and electrophotographic apparatusFUJI XEROX CO LTD·Filed 1998·Granted Dec 14, 1999·9 cites·22 claims
- 2646US8088458B2Magnetic latent image holding body, process cartridge, and image forming apparatusWATANABE YASUAKI·Filed 2008·Granted Jan 3, 2012·0 cites·17 claims
- 2746US5587263AElectrophotographic photoreceptor using triarylamine compoundsFUJI XEROX CO LTD·Filed 1995·Granted Dec 24, 1996·6 cites·21 claims
- 2838US2013196258A1Toner, developer, developer cartridge, image forming apparatus, and image forming methodINABA YOSHIHIRO·Filed 2012·Application pending·0 cites
- 2932US5516609AMethoxy gallium phthalocyanine compound and electrophotographic photoreceptor using itFUJI XEROX CO LTD·Filed 1994·Granted May 14, 1996·1 cites·10 claims
- 3031US5424159AElectrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1993·Granted Jun 13, 1995·1 cites·9 claims
- 3131US5104758AElectrophotographic photoreceptor comprising a squarylium compound and selenium or a selenium alloyFUJI XEROX CO LTD·Filed 1990·Granted Apr 14, 1992·1 cites·6 claims
- 3230US5456997AElectrophotographic photoreceptorFUJI XEROX CO LTD·Filed 1993·Granted Oct 10, 1995·0 cites·2 claims
- 3330US5403688AMethod for determining termination time of the step of dispersing a coating composition for photosensitive layer of electrophotographic photoreceptor and electrophotographic photoreceptor prepared using the dispersionFUJI XEROX CO LTD·Filed 1991·Granted Apr 4, 1995·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →