Inventor
ANZAI MITSUTOSHI
JP43 patents
⚠️ This page may combine multiple inventors who share the name “ANZAI MITSUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HODOGAYA CHEMICAL CO LTD
25 patentsUS6316577B1Nov 13, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
HODOGAYA CHEMICAL CO LTD34 citations93
US7799492B2Sep 21, 2010
P-terphenyl compound and photosensitive body for electrophotography using such compound
HODOGAYA CHEMICAL CO LTD22 citations92
US7759030B2Jul 20, 2010
P-terphenyl compound and photosensitive body for electrophotography using such compound
HODOGAYA CHEMICAL CO LTD41 citations92
US5413891AMay 9, 1995
Electrostatic image developing toner
HODOGAYA CHEMICAL CO LTD23 citations91
US5512400AApr 30, 1996
Hydrazone compound and electrophotographic photoreceptor and organic electroluminescent element both containing the same
HODOGAYA CHEMICAL CO LTD5 citations74
US5840980ANov 24, 1998
Diamine compounds and electrophotographic photoreceptor
HODOGAYA CHEMICAL CO LTD6 citations73
US5707768AJan 13, 1998
Diamine compounds and electrophotographic photoreceptor
HODOGAYA CHEMICAL CO LTD8 citations73
US5654481AAug 5, 1997
Amine compound
HODOGAYA CHEMICAL CO LTD10 citations73
US5413892AMay 9, 1995
Electrostatic image developing toner
HODOGAYA CHEMICAL CO LTD14 citations72
US5232809AAug 3, 1993
Toner for electrophotography
HODOGAYA CHEMICAL CO LTD12 citations71
US5629421AMay 13, 1997
Hydrazone compounds
HODOGAYA CHEMICAL CO LTD4 citations63
US5728500AMar 17, 1998
Electrophotographic photoreceptor with acenaphthene compound
HODOGAYA CHEMICAL CO LTD4 citations62
US5721082AFeb 24, 1998
Electrophotographic photoreceptor containing amine compound
HODOGAYA CHEMICAL CO LTD6 citations62
US5391454AFeb 21, 1995
Electrostatic image developing toner
HODOGAYA CHEMICAL CO LTD3 citations61
US4612558ASep 16, 1986
Fluoran compounds
HODOGAYA CHEMICAL CO LTD4 citations61
US6790574B2Sep 14, 2004
Electrophotographic photoreceptor
HODOGAYA CHEMICAL CO LTD4 citations60
US5368971ANov 29, 1994
Electrophotographic toner containing a zinc benzoate compound
HODOGAYA CHEMICAL CO LTD3 citations60
US5346794ASep 13, 1994
Electrophotographic toner
HODOGAYA CHEMICAL CO LTD2 citations58
US7902402B2Mar 8, 2011
Tetramine compound and organic EL device
HODOGAYA CHEMICAL CO LTD0 citations52
US7897816B2Mar 1, 2011
Tetramine compound and organic EL device
HODOGAYA CHEMICAL CO LTD0 citations52
US7807274B2Oct 5, 2010
Tetramine compound and organic EL device
HODOGAYA CHEMICAL CO LTD0 citations52
US6897000B2May 24, 2005
Charge controlling agent, method for producing the same and toner for developing electrostatic image
HODOGAYA CHEMICAL CO LTD1 citations52
US5164283ANov 17, 1992
Electrophotographic developing powder
HODOGAYA CHEMICAL CO LTD1 citations51
US4594601AJun 10, 1986
Fluoran compounds
HODOGAYA CHEMICAL CO LTD0 citations51
US5378573AJan 3, 1995
Electrophotographic toner
HODOGAYA CHEMICAL CO LTD0 citations37
RICOH KK
17 patentsUS6191249B1Feb 20, 2001
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK64 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
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
US5840454ANov 24, 1998
Aromatic polycarbonate and electrophotographic photosensitive medium using same
RICOH KK62 citations96
US5789128AAug 4, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK73 citations96
US5747204AMay 5, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the same
RICOH KK56 citations96
US5723243AMar 3, 1998
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein
RICOH KK57 citations96
US5830980ANov 3, 1998
Electrophotographic photoconductor, aromatic polycarbonate resin for use in the same, and method of producing the aromatic polycarbonate resin
RICOH KK28 citations93
US5604065AFeb 18, 1997
Electrophotographic photoconductor and triphenylamine compound for use therein
RICOH KK21 citations93
US6018014AJan 25, 2000
Aromatic polycarbonate and electrophotographic photosensitive medium using same
RICOH KK41 citations92
US5312707AMay 17, 1994
Electrophotographic photoconductor and diamine compounds for use in the same
RICOH KK35 citations90
US5672756ASep 30, 1997
Triphenylamine compound for use in electrophotographic photoconductors
RICOH KK16 citations82
US5631404AMay 20, 1997
Diamine compounds for use in electrophotographic photoconductors
RICOH KK12 citations74
US5489495AFeb 6, 1996
Electrophotographic photoconductor and diamine compounds for use in the same
RICOH KK15 citations74