Inventor
LI HONGGUO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “LI HONGGUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
15 patentsUS7179573B2Feb 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
US6899983B2May 31, 2005
Electrophotographic photoconductor, electrophotographic apparatus and process cartridge
RICOH KK63 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
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
US6939651B2Sep 6, 2005
Electrophotographic photoconductor, and process cartridge and electrophotographic apparatus using the same
RICOH KK23 citations92
US6849367B2Feb 1, 2005
Electrophotographic photoconductor, process for forming an image, image forming apparatus and a process cartridge for the same
RICOH KK22 citations91
US7279260B2Oct 9, 2007
Electrophotographic photoconductor having a crosslinked resin layer and method of preparing an electrophotographic photoconductor
RICOH KK12 citations84
US7175958B2Feb 13, 2007
Electrophotographic photoconductor, process for forming an image, image forming apparatus and process cartridge for the same
RICOH KK12 citations82
US7556903B2Jul 7, 2009
Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptor
RICOH KK7 citations74
US7507509B2Mar 24, 2009
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophotographic photoreceptor
RICOH KK7 citations74
US7718333B2May 18, 2010
Electrophotographic photoconductor and method of preparing same
RICOH KK2 citations63
US7691931B2Apr 6, 2010
Organic-inorganic hybrid material and method of preparing the organic-inorganic hybrid material, and electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method using the organic-inorganic hybrid material
RICOH KK3 citations63
US7629094B2Dec 8, 2009
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor
RICOH KK3 citations63
US7659044B2Feb 9, 2010
Photoconductor, producing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridge
RICOH KK3 citations61
NAGAI KAZUKIYO
2 patentsUS8192904B2Jun 5, 2012
Electrophotographic photoconductor, and image forming apparatus and process cartridge using the same
NAGAI KAZUKIYO37 citations91
US8835084B2Sep 16, 2014
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using same
NAGAI KAZUKIYO0 citations40
RICOH CO LTD
2 patentsUS7858278B2Dec 28, 2010
Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor
RICOH CO LTD2 citations63
US7985520B2Jul 26, 2011
Photoreceptor, image formation method, image forming apparatus and process cartridge
RICOH CO LTD0 citations50