Inventor
MOROOKA KATSUHIRO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “MOROOKA KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
21 patentsUS6194535B1Feb 27, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK85 citations98
US6066428AMay 23, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK100 citations98
US6191249B1Feb 20, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK64 citations96
US6187492B1Feb 13, 2001
Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor
RICOH KK81 citations96
US6187494B1Feb 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor
RICOH KK62 citations96
US6172176B1Jan 9, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK49 citations96
US6069224AMay 30, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK54 citations96
US6027846AFeb 22, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK49 citations96
US5976746ANov 2, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK65 citations96
US5942363AAug 24, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK72 citations96
US5910561AJun 8, 1999
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK60 citations96
US5846680ADec 8, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK70 citations96
US5789128AAug 4, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK73 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
US6130310AOct 10, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK28 citations92
US6045959AApr 4, 2000
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK39 citations92
US7071285B2Jul 4, 2006
Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus
RICOH KK12 citations84
HODOGAYA CHEMICAL CO LTD
2 patentsUS6316577B1Nov 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
HODOGAYA CHEMICAL CO LTD34 citations93
US6919419B2Jul 19, 2005
Aromatic block polycarbonate resin, diphenol compound for preparation of the polycarbonate resin, electro-photographic photoconductor, electro-photographic image forming apparatus and process, and process cartridge
HODOGAYA CHEMICAL CO LTD19 citations92