Inventor

Hiroaki Yokoya

Inventor

Kanagawa, JP

Overview

33→

Patents

1984–2003

Patent span

Physics

Primary field (CPC G)

Patents· 33 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography43%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices22%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%

B41CProcesses for the manufacture or reproduction of printing surfaces11%

C07DHeterocyclic compounds2%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%

G03CPhotosensitive materials for photographic purposes2%

PatentTitleYear

6,613,496'Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plate'2003 5,955,238'Waterless planographic printing plate and method of plate making using the same'1999 5,849,464'Method of making a waterless lithographic printing plate'1998 5,840,467'Image recording materials'1998 5,741,619'Negative image-recording material comprising an acrylic resin, a diazo compound and carbon black'1998 5,721,087'Formation of lithographic printing plate requiring no fountain solution'1998 5,714,303'Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide'1998 5,612,167'Image forming method using strippable layer and light-sensitive polymerizable layer containing silver halide'1997 5,582,942'Printing plate for electrophotographic type plate making'1996 5,554,482'Silver halide light-sensitive material containing base precursor and polyvinyl alcohol'1996 5,426,012'Electrophotographic printing plate precursor'1995 5,397,676'Image forming method including heat development while covering surface of light-sensitive material'1995 5,328,800'Color image forming method using silver halide, reducing agent, polymerizable compound and colorant'1994 5,326,667'Image forming method and light-sensitive material using silver halide, reducing agent and polymerizable compound'1994 5,304,454'Image forming method using silver halide, reducing agent and polymerizable compound'1994 5,208,126'Electrophotographic printing plate precursor and photosensitive lithographic printing plate precursor'1993 5,102,760'Electrophotographic photoreceptor and electrophotographic printing plate precursor comprising phthalocyanine pigment and thiobarbituric acid derivative'1992 5,079,116'Electrophotographic type printing plate precursor'1992 5,069,992'Electrophotographic printing plate precursor containing alkali-soluble polyurethane resin as binder resin'1991 5,063,129'Electrophotographic printing plate precursor'1991 5,051,327'Method for oil-densensitization treatment of lithographic printing plate'1991 5,035,969'Electrophotographic photoreceptor containing phthalocyanine'1991 5,015,551'Electrophotographic liquid developers containing positively charged resin particles'1991 5,006,433'Printing plate precursors for electrophotographic plate-making purposes'1991 4,985,323'Electrophotographic printing plate'1991 4,910,109'Electrophotographic printing plate containing thiopyrylium salt compound'1990 4,800,146'Transparent electrophotographic photoreceptor comprising specific hydrazone and benzidine compounds as photoconductors'1989 4,734,351'Liquid developer for electrostatic charge image'1988 4,719,165'Process for preparation of charge-regulatory agent and liquid developer for electrostatic image containing said agent'1988 4,708,922'Electrophotographic photoreceptor comprises diarylamine photoconductor and styryl dye having tertiary amino moiety substituted with aryl groups'1987 4,681,832'Electrophotographic liquid developer'1987 4,614,699'Liquid developers for electrostatic images'1986 4,473,630'Liquid developer comprising aminoalkyl styrene polymer for electrostatic images'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2003Patents assigned to FUJI PHOTO FILM CO LTD (33)· patent assignee history

1984–1991Based in Saitama, JP· patent location history

1986–1996Based in Kanagawa, JP· patent location history

1995–2003Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	33	1984–2003

Locations

Location	Patents	Span
Kanagawa, JP	21	1986–1996
Shizuoka, JP	10	1995–2003
Saitama, JP	2	1984–1991