P

Inventor

SAKAGUCHI YASUO

JP74 patents
⚠️ This page may combine multiple inventors who share the name “SAKAGUCHI YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJI XEROX CO LTD

34 patents
US6020426AFeb 1, 2000

Charge-transporting copolymer, method of forming charge-transporting copolymer, electrophotographic photosensitive body, and electrophotographic device

FUJI XEROX CO LTD83 citations96
US5393629AFeb 28, 1995

Electrophotographic photoreceptor

FUJI XEROX CO LTD55 citations96
US5358813AOct 25, 1994

Crystals of chlorogallium phthalocyanine and method of preparing them

FUJI XEROX CO LTD59 citations96
US5302479AApr 12, 1994

Crystals of hydroxygallium phthalocyanine, method of preparing the crystals, photoconductive material comprising the crystals, and electrophotographic photoreceptor comprising the material

FUJI XEROX CO LTD97 citations96
US5298617AMar 29, 1994

Oxytitaniumphthalocyanine hydrate crystal and electrophotographic photoreceptor using said crystal

FUJI XEROX CO LTD70 citations96
US5308728AMay 3, 1994

Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same

FUJI XEROX CO LTD29 citations93
US5283145AFeb 1, 1994

Crystals of dichlorotin phthalocyanine, method of preparing the crystal, and electrophotographic photoreceptor comprising the crystal

FUJI XEROX CO LTD32 citations93
US5834149ANov 10, 1998

Hydroxygallium phthalocyanine crystals and electrophotographic photoreceptors using same

FUJI XEROX CO LTD24 citations92
US5663327ASep 2, 1997

Hydroxygallium phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor containing the same

FUJI XEROX CO LTD26 citations92
US5464717ANov 7, 1995

Electrophotographic photoreceptor with subbing layer and charge generating layer

FUJI XEROX CO LTD20 citations92
US5463043AOct 31, 1995

Process for producing a dichlorotin phthalocyanine crystal

FUJI XEROX CO LTD29 citations92
US5378569AJan 3, 1995

Oxytitaniumphthalocyanine hydrate crystal and electrophotographic photoreceptor using said crystal

FUJI XEROX CO LTD38 citations92
US5338636AAug 16, 1994

Dichlorotin phthalocyanine crystal electrophotographic photoreceptor using the same, and coating composition for electrophotographic photoreceptor

FUJI XEROX CO LTD29 citations92
US5252417AOct 12, 1993

Titanyl phthalocyanine crystal and electrophotographic photoreceptor using the same

FUJI XEROX CO LTD33 citations92
US4996125AFeb 26, 1991

Electrophotographic photoreceptor containing a fluorine lubricating agent layer

FUJI XEROX CO LTD35 citations92
US5416207AMay 16, 1995

Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same

FUJI XEROX CO LTD27 citations91
US5332643AJul 26, 1994

Method of wet honing a support for an electrophotographic photoreceptor

FUJI XEROX CO LTD21 citations89
US5834146ANov 10, 1998

Electrophotographic photoreceptor containing uniform and nonuniform charge transporting layers

FUJI XEROX CO LTD17 citations84
US5789127AAug 4, 1998

Electrophotographic photoreceptor

FUJI XEROX CO LTD17 citations84
US5643703AJul 1, 1997

Hydroxygallium phthalocyanine crystal, process for preparing same, and electrophotographic photoreceptor comprising same

FUJI XEROX CO LTD16 citations82
US6395440B1May 28, 2002

Electrophotographic photoreceptor, process cartridge and electrophotographic apparatus using the same

FUJI XEROX CO LTD8 citations74
US6232466B1May 15, 2001

Process for preparing titanyl phthalocyanine crystal by solvent treatment of amorphous or quasi-amorphous titanyl phthalocyanine

FUJI XEROX CO LTD13 citations74
US5942361AAug 24, 1999

Electrophotographic photosensitive member having S-type photo-induced potential decay and electrophotographic apparatus

FUJI XEROX CO LTD15 citations74
US5856471AJan 5, 1999

Phthalocyanine pigment for electrophotographic photoreceptors

FUJI XEROX CO LTD5 citations74
US5622801AApr 22, 1997

Phthalocyanine pigment and dispersion thereof and electrophotographic photoreceptor containing the pigment

FUJI XEROX CO LTD5 citations74
US5545733AAug 13, 1996

Method for preparing hydroxygallium phthalocyanine crystals and electrophotographic photoreceptor using the crystals

FUJI XEROX CO LTD7 citations74
US5512674AApr 30, 1996

Process for preparing titanyl phthalocyanine crystal by solvent dilution

FUJI XEROX CO LTD14 citations74
US5508395AApr 16, 1996

Hydroxygallium phthalocyanine crystal, process for preparing same

FUJI XEROX CO LTD10 citations74
US5495011AFeb 27, 1996

Process for preparing hydroxygallium phthalocyanine crystal, product thereof and electrophotographic photoreceptor using the same

FUJI XEROX CO LTD9 citations74
US5360475ANov 1, 1994

Process for preparing hydroxymetal phthalocyanine pigment

FUJI XEROX CO LTD16 citations74
US5141832AAug 25, 1992

Electrophotographic photoreceptor with copolymerized polycarbonate resin

FUJI XEROX CO LTD11 citations74
US6268096B1Jul 31, 2001

Titanyl phthalocyanine crystal and electrophotographic photoreceptor using the same

FUJI XEROX CO LTD13 citations73
US6016417AJan 18, 2000

Intermediate transfer medium, method for producing the same and image forming device using the same

FUJI XEROX CO LTD12 citations73
US5440029AAug 8, 1995

Titanyl phthalocyanine crystal

FUJI XEROX CO LTD6 citations73

KUREHA CHEMICAL IND CO LTD

7 patents

TOYOTA MOTOR CO LTD

6 patents

HITACHI METALS LTD

1 patent

XEROX CORP

1 patent

EXXON CHEMICAL PATENTS INC

1 patent

Showing the top 50 of 74 patents by PatentIndex Score.