Inventor
RI KOHKOKU
JP11 patents
⚠️ This page may combine multiple inventors who share the name “RI KOHKOKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
10 patentsUS6444387B2Sep 3, 2002
Image bearing material, electrophotographic photoreceptor using the image bearing material, and image forming apparatus using the photoreceptor
RICOH KK84 citations98
US6210848B1Apr 3, 2001
Electrophotographic photoconductor, and process cartridge and image forming apparatus using the same
RICOH KK103 citations98
US6187494B1Feb 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK62 citations96
US6187492B1Feb 13, 2001
Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor
RICOH KK81 citations96
US6790571B2Sep 14, 2004
Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus
RICOH KK31 citations92
US6664361B2Dec 16, 2003
Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor
RICOH KK35 citations92
US6576386B1Jun 10, 2003
Aromatic block polycarbonate resin, diphenol compound for preparation of the polycarbonate resin, electrophotographic photoconductor, electrophotographic image forming apparatus and process, and process cartridge
RICOH KK39 citations92
US6486293B1Nov 26, 2002
Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor
RICOH KK36 citations92
US6303736B1Oct 16, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK37 citations92
US7071285B2Jul 4, 2006
Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus
RICOH KK12 citations84