Inventor · disambiguated record
Hiroaki Yokoya
Also filed as: YOKOYA HIROAKI
33 granted patents·442 citations·filing 1982–1997
97Inventor score
Files withFUJI PHOTO FILM CO LTD33
Top patents by PatentIndex Score
33 records- 0191US5955238AWaterless planographic printing plate and method of plate making using the sameFUJI PHOTO FILM CO LTD·Filed 1997·Granted Sep 21, 1999·87 cites·20 claims
- 0289US5840467AImage recording materialsFUJI PHOTO FILM CO LTD·Filed 1996·Granted Nov 24, 1998·81 cites·11 claims
- 0387US5328800AColor image forming method using silver halide, reducing agent, polymerizable compound and colorantFUJI PHOTO FILM CO LTD·Filed 1992·Granted Jul 12, 1994·57 cites·2 claims
- 0471US5741619ANegative image-recording material comprising an acrylic resin, a diazo compound and carbon blackFUJI PHOTO FILM CO LTD·Filed 1997·Granted Apr 21, 1998·22 cites·7 claims
- 0571US4708922AElectrophotographic photoreceptor comprises diarylamine photoconductor and styryl dye having tertiary amino moiety substituted with aryl groupsFUJI PHOTO FILM CO LTD·Filed 1986·Granted Nov 24, 1987·17 cites·12 claims
- 0670US5554482ASilver halide light-sensitive material containing base precursor and polyvinyl alcoholFUJI PHOTO FILM CO LTD·Filed 1995·Granted Sep 10, 1996·6 cites·21 claims
- 0768US5035969AElectrophotographic photoreceptor containing phthalocyanineFUJI PHOTO FILM CO LTD·Filed 1990·Granted Jul 30, 1991·17 cites·6 claims
- 0863US4614699ALiquid developers for electrostatic imagesFUJI PHOTO FILM CO LTD·Filed 1984·Granted Sep 30, 1986·12 cites·21 claims
- 0962US5069992AElectrophotographic printing plate precursor containing alkali-soluble polyurethane resin as binder resinFUJI PHOTO FILM CO LTD·Filed 1990·Granted Dec 3, 1991·14 cites·10 claims
- 1061US4473630ALiquid developer comprising aminoalkyl styrene polymer for electrostatic imagesFUJI PHOTO FILM CO LTD·Filed 1982·Granted Sep 25, 1984·11 cites·16 claims
- 1160US5208126AElectrophotographic printing plate precursor and photosensitive lithographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 1991·Granted May 4, 1993·12 cites·35 claims
- 1258US5051327AMethod for oil-densensitization treatment of lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 24, 1991·10 cites·6 claims
- 1356US5849464AMethod of making a waterless lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1997·Granted Dec 15, 1998·12 cites·24 claims
- 1453US5102760AElectrophotographic photoreceptor and electrophotographic printing plate precursor comprising phthalocyanine pigment and thiobarbituric acid derivativeFUJI PHOTO FILM CO LTD·Filed 1990·Granted Apr 7, 1992·4 cites·15 claims
- 1552US5326667AImage forming method and light-sensitive material using silver halide, reducing agent and polymerizable compoundFUJI PHOTO FILM CO LTD·Filed 1992·Granted Jul 5, 1994·11 cites·22 claims
- 1651US5721087AFormation of lithographic printing plate requiring no fountain solutionFUJI PHOTO FILM CO LTD·Filed 1996·Granted Feb 24, 1998·10 cites·5 claims
- 1749US4719165AProcess for preparation of charge-regulatory agent and liquid developer for electrostatic image containing said agentFUJI PHOTO FILM CO LTD·Filed 1986·Granted Jan 12, 1988·8 cites·14 claims
- 1841US4734351ALiquid developer for electrostatic charge imageFUJI PHOTO FILM CO LTD·Filed 1986·Granted Mar 29, 1988·5 cites·12 claims
- 1940US5714303AImage forming method using strippable layer and light-sensitive polymerizable layer containing silver halideFUJI PHOTO FILM CO LTD·Filed 1996·Granted Feb 3, 1998·5 cites·6 claims
- 2038US5063129AElectrophotographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 1989·Granted Nov 5, 1991·4 cites·9 claims
- 2137US6613496B1Method for forming a dampening-waterless lithographic plate and method for forming an image using a dampening-waterless lithographic plateFUJI PHOTO FILM CO LTD·Filed 1997·Granted Sep 2, 2003·8 cites·12 claims
- 2237US5304454AImage forming method using silver halide, reducing agent and polymerizable compoundFUJI PHOTO FILM CO LTD·Filed 1992·Granted Apr 19, 1994·4 cites·17 claims
- 2337US5015551AElectrophotographic liquid developers containing positively charged resin particlesFUJI PHOTO FILM CO LTD·Filed 1984·Granted May 14, 1991·3 cites·10 claims
- 2436US4985323AElectrophotographic printing plateFUJI PHOTO FILM CO LTD·Filed 1988·Granted Jan 15, 1991·3 cites·29 claims
- 2536US4910109AElectrophotographic printing plate containing thiopyrylium salt compoundFUJI PHOTO FILM CO LTD·Filed 1988·Granted Mar 20, 1990·3 cites·13 claims
- 2635US5612167AImage forming method using strippable layer and light-sensitive polymerizable layer containing silver halideFUJI PHOTO FILM CO LTD·Filed 1995·Granted Mar 18, 1997·3 cites·5 claims
- 2734US5006433APrinting plate precursors for electrophotographic plate-making purposesFUJI PHOTO FILM CO LTD·Filed 1989·Granted Apr 9, 1991·2 cites·16 claims
- 2833US5079116AElectrophotographic type printing plate precursorFUJI PHOTO FILM CO LTD·Filed 1990·Granted Jan 7, 1992·4 cites·13 claims
- 2932US5426012AElectrophotographic printing plate precursorFUJI PHOTO FILM CO LTD·Filed 1990·Granted Jun 20, 1995·2 cites·7 claims
- 3032US4681832AElectrophotographic liquid developerFUJI PHOTO FILM CO LTD·Filed 1986·Granted Jul 21, 1987·3 cites·19 claims
- 3131US4800146ATransparent electrophotographic photoreceptor comprising specific hydrazone and benzidine compounds as photoconductorsFUJI PHOTO FILM CO LTD·Filed 1986·Granted Jan 24, 1989·1 cites·13 claims
- 3230US5582942APrinting plate for electrophotographic type plate makingFUJI PHOTO FILM CO LTD·Filed 1989·Granted Dec 10, 1996·0 cites·15 claims
- 3330US5397676AImage forming method including heat development while covering surface of light-sensitive materialFUJI PHOTO FILM CO LTD·Filed 1994·Granted Mar 14, 1995·1 cites·27 claims
Join the waitlist — get patent alerts
Get an alert when Hiroaki Yokoya files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →