Inventor

YOKOYA HIROAKI

JP33 patents

Patents

33 patents

US5955238ASep 21, 1999

Waterless planographic printing plate and method of plate making using the same

FUJI PHOTO FILM CO LTD87 citations96

US5840467ANov 24, 1998

Image recording materials

FUJI PHOTO FILM CO LTD81 citations96

US5328800AJul 12, 1994

Color image forming method using silver halide, reducing agent, polymerizable compound and colorant

FUJI PHOTO FILM CO LTD57 citations96

US5741619AApr 21, 1998

Negative image-recording material comprising an acrylic resin, a diazo compound and carbon black

FUJI PHOTO FILM CO LTD22 citations92

US5849464ADec 15, 1998

Method of making a waterless lithographic printing plate

FUJI PHOTO FILM CO LTD12 citations74

US5069992ADec 3, 1991

Electrophotographic printing plate precursor containing alkali-soluble polyurethane resin as binder resin

FUJI PHOTO FILM CO LTD14 citations74

US5051327ASep 24, 1991

Method for oil-densensitization treatment of lithographic printing plate

FUJI PHOTO FILM CO LTD10 citations74

US5035969AJul 30, 1991

Electrophotographic photoreceptor containing phthalocyanine

FUJI PHOTO FILM CO LTD17 citations74

US4708922ANov 24, 1987

Electrophotographic photoreceptor comprises diarylamine photoconductor and styryl dye having tertiary amino moiety substituted with aryl groups

FUJI PHOTO FILM CO LTD17 citations74

US5721087AFeb 24, 1998

Formation of lithographic printing plate requiring no fountain solution

FUJI PHOTO FILM CO LTD10 citations73

US5714303AFeb 3, 1998

Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide

FUJI PHOTO FILM CO LTD5 citations73

US5326667AJul 5, 1994

Image forming method and light-sensitive material using silver halide, reducing agent and polymerizable compound

FUJI PHOTO FILM CO LTD11 citations73

US5208126AMay 4, 1993

Electrophotographic printing plate precursor and photosensitive lithographic printing plate precursor

FUJI PHOTO FILM CO LTD12 citations73

US4719165AJan 12, 1988

Process for preparation of charge-regulatory agent and liquid developer for electrostatic image containing said agent

FUJI PHOTO FILM CO LTD8 citations73

US4614699ASep 30, 1986

Liquid developers for electrostatic images

FUJI PHOTO FILM CO LTD12 citations73

US4473630ASep 25, 1984

Liquid developer comprising aminoalkyl styrene polymer for electrostatic images

FUJI PHOTO FILM CO LTD11 citations73

US6613496B1Sep 2, 2003

Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plate

FUJI PHOTO FILM CO LTD8 citations71

US5554482ASep 10, 1996

Silver halide light-sensitive material containing base precursor and polyvinyl alcohol

FUJI PHOTO FILM CO LTD6 citations63

US5102760AApr 7, 1992

Electrophotographic photoreceptor and electrophotographic printing plate precursor comprising phthalocyanine pigment and thiobarbituric acid derivative

FUJI PHOTO FILM CO LTD4 citations63

US5015551AMay 14, 1991

Electrophotographic liquid developers containing positively charged resin particles

FUJI PHOTO FILM CO LTD3 citations63

US5006433AApr 9, 1991

Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide

FUJI PHOTO FILM CO LTD3 citations62

US5426012AJun 20, 1995

Electrophotographic printing plate precursor

FUJI PHOTO FILM CO LTD2 citations62

US5304454AApr 19, 1994

Image forming method using silver halide, reducing agent and polymerizable compound

FUJI PHOTO FILM CO LTD4 citations62

US5063129ANov 5, 1991

Electrophotographic printing plate precursor

FUJI PHOTO FILM CO LTD4 citations62

US4734351AMar 29, 1988

Liquid developer for electrostatic charge image

FUJI PHOTO FILM CO LTD5 citations62

US4681832AJul 21, 1987

Electrophotographic liquid developer

FUJI PHOTO FILM CO LTD3 citations60

US5079116AJan 7, 1992

Electrophotographic type printing plate precursor

FUJI PHOTO FILM CO LTD4 citations57

US5582942ADec 10, 1996

Printing plate for electrophotographic type plate making

FUJI PHOTO FILM CO LTD0 citations52

US4800146AJan 24, 1989

Transparent electrophotographic photoreceptor comprising specific hydrazone and benzidine compounds as photoconductors

FUJI PHOTO FILM CO LTD1 citations52

US5397676AMar 14, 1995

Image forming method including heat development while covering surface of light-sensitive material

FUJI PHOTO FILM CO LTD1 citations51

YOKOYA HIROAKI

Patents

Waterless planographic printing plate and method of plate making using the same

Image recording materials

Color image forming method using silver halide, reducing agent, polymerizable compound and colorant

Negative image-recording material comprising an acrylic resin, a diazo compound and carbon black

Method of making a waterless lithographic printing plate

Electrophotographic printing plate precursor containing alkali-soluble polyurethane resin as binder resin

Method for oil-densensitization treatment of lithographic printing plate

Electrophotographic photoreceptor containing phthalocyanine

Electrophotographic photoreceptor comprises diarylamine photoconductor and styryl dye having tertiary amino moiety substituted with aryl groups

Formation of lithographic printing plate requiring no fountain solution

Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide

Image forming method and light-sensitive material using silver halide, reducing agent and polymerizable compound

Electrophotographic printing plate precursor and photosensitive lithographic printing plate precursor

Process for preparation of charge-regulatory agent and liquid developer for electrostatic image containing said agent

Liquid developers for electrostatic images

Liquid developer comprising aminoalkyl styrene polymer for electrostatic images

Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plate

Silver halide light-sensitive material containing base precursor and polyvinyl alcohol

Electrophotographic photoreceptor and electrophotographic printing plate precursor comprising phthalocyanine pigment and thiobarbituric acid derivative

Electrophotographic liquid developers containing positively charged resin particles

Printing plate precursors for electrophotographic plate-making purposes

Electrophotographic printing plate

Electrophotographic printing plate containing thiopyrylium salt compound

Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide

Electrophotographic printing plate precursor

Image forming method using silver halide, reducing agent and polymerizable compound

Electrophotographic printing plate precursor

Liquid developer for electrostatic charge image

Electrophotographic liquid developer

Electrophotographic type printing plate precursor

Printing plate for electrophotographic type plate making

Transparent electrophotographic photoreceptor comprising specific hydrazone and benzidine compounds as photoconductors

Image forming method including heat development while covering surface of light-sensitive material