Inventor
IKUNO HIROSHI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “IKUNO HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
28 patentsUS6366751B1Apr 2, 2002
Image forming apparatus including preselected range between charge injection layer and voltage potential
RICOH KK182 citations99
US6030733AFeb 29, 2000
Electrophotographic photoconductor with water vapor permeability
RICOH KK133 citations99
US5871876AFeb 16, 1999
Electrophotographic photoconductor
RICOH KK157 citations99
US5350459ASep 27, 1994
Organic photovoltaic element
RICOH KK150 citations99
US6641964B2Nov 4, 2003
Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK80 citations98
US6432596B2Aug 13, 2002
Electrophotographic photoreceptor and image forming method and apparatus using the photoreceptor
RICOH KK102 citations98
US6151468ANov 21, 2000
Electrophotographic photoconductor
RICOH KK105 citations98
US7179573B2Feb 20, 2007
Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the same
RICOH KK46 citations96
US7175957B2Feb 13, 2007
Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the same
RICOH KK49 citations96
US7361438B2Apr 22, 2008
Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the same
RICOH KK19 citations93
US6686114B2Feb 3, 2004
Electrophotographic image forming method and apparatus
RICOH KK47 citations93
US6489073B2Dec 3, 2002
Method and device for developing electrostatic latent images
RICOH KK34 citations93
US5870657AFeb 9, 1999
Charging apparatus for photoconductor with ozone adsorption features
RICOH KK30 citations93
US5840455ANov 24, 1998
Electrophotographic photoconductor
RICOH KK30 citations93
US5656406AAug 12, 1997
Electrophotographic photoconductor with amorphous carbon overlayer
RICOH KK33 citations93
US5525447AJun 11, 1996
Electrophotographic photoconductor
RICOH KK31 citations93
US5452061ASep 19, 1995
Image formation apparatus
RICOH KK25 citations93
US7416823B2Aug 26, 2008
Electrophotographic photoconductor, and image formation method, image formation apparatus, and process cartridge for image formation apparatus using the same
RICOH KK27 citations92
US6844124B2Jan 18, 2005
Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor
RICOH KK31 citations92
US7279260B2Oct 9, 2007
Electrophotographic photoconductor having a crosslinked resin layer and method of preparing an electrophotographic photoconductor
RICOH KK12 citations84
US7189487B2Mar 13, 2007
Electrophotographic photoreceptor, and electrophotographic apparatus, process cartridge and method using the photoreceptor
RICOH KK11 citations84
US6998209B2Feb 14, 2006
Electrophotographic photoreceptor, and electrophotographic apparatus, process cartridge and method using the photoreceptor
RICOH KK15 citations84
US7399563B2Jul 15, 2008
Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the same
RICOH KK13 citations82
US7556903B2Jul 7, 2009
Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptor
RICOH KK7 citations74
US7718333B2May 18, 2010
Electrophotographic photoconductor and method of preparing same
RICOH KK2 citations63
US7629103B2Dec 8, 2009
Photoconductor, manufacturing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridge
RICOH KK4 citations63
US7449272B2Nov 11, 2008
Electrophotographic photoreceptor and method of preparing the photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptor
RICOH KK4 citations63
US7295788B2Nov 13, 2007
Image forming apparatus and process cartridge
RICOH KK3 citations60
RICOH CO LTD
3 patentsUS8043773B2Oct 25, 2011
Image bearing member, image forming apparatus and process cartridge
RICOH CO LTD5 citations63
US7858278B2Dec 28, 2010
Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor
RICOH CO LTD2 citations63
US8043777B2Oct 25, 2011
Electrophotographic photoconductor, process cartridge, and image forming apparatus
RICOH CO LTD1 citations52
FUJIWARA YUKIO
2 patentsIKUNO HIROSHI
2 patentsKAMI HIDETOSHI
2 patentsUS8084170B2Dec 27, 2011
Electrophotographic photoconductor, electrophotographic process cartridge containing the same and electrophotographic apparatus containing the same
KAMI HIDETOSHI4 citations62
US8119317B2Feb 21, 2012
Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptor
KAMI HIDETOSHI1 citations51