Inventor · disambiguated record
Kazuo Tsubuko
Also filed as: HASHIMOTO JUNICHIRO · TSUBUKO KAZUO
35 granted patents·2 pending applications·719 citations·filing 1975–2006
98Inventor score
Top patents by PatentIndex Score
37 records- 0193US6447973B1Liquid developer for developing electrostatic image and image forming methodRICOH KK·Filed 2000·Granted Sep 10, 2002·70 cites·6 claims
- 0293US5061587AToner for electrophotography including fluorine contained graft copolymerRICOH KK·Filed 1989·Granted Oct 29, 1991·44 cites·45 claims
- 0392US5026621AToner for electrophotographyRICOH KK·Filed 1989·Granted Jun 25, 1991·50 cites·12 claims
- 0487US5952048AInk composition and recording method using the sameRICOH KK·Filed 1997·Granted Sep 14, 1999·57 cites·14 claims
- 0586US7670742B2Recording material, toner, liquid developer and image forming method using the sameRICOH KK·Filed 2006·Granted Mar 2, 2010·9 cites·22 claims
- 0685US5189102AMethod for producing a vinyl resin using a silicon oil solventRICOH KK·Filed 1992·Granted Feb 23, 1993·47 cites·15 claims
- 0784US6620569B2Liquid recording materialRICOH KK·Filed 2002·Granted Sep 16, 2003·17 cites·18 claims
- 0883US5851717ADeveloper for use in electrophotography, and image formation method using the sameRICOH KK·Filed 1996·Granted Dec 22, 1998·35 cites·20 claims
- 0982US4855207ADeveloper for electrophotographyRICOH KK·Filed 1988·Granted Aug 8, 1989·25 cites·11 claims
- 1082US4081391ALiquid developer for use in electrophotographyRICOH KK·Filed 1975·Granted Mar 28, 1978·26 cites·5 claims
- 1180US6692881B2Recording liquid and image forming method using the recording liquidRICOH KK·Filed 2002·Granted Feb 17, 2004·18 cites·21 claims
- 1280US6020103ALiquid developer, method of producing the liquid developer and image formation using the sameRICOH KK·Filed 1997·Granted Feb 1, 2000·29 cites·17 claims
- 1380US4181620ALiquid developer for use in electrophotographyRICOH KK·Filed 1977·Granted Jan 1, 1980·19 cites·23 claims
- 1478US4925763ADeveloper for electrophotography containing ionomer resinRICOH KK·Filed 1988·Granted May 15, 1990·19 cites·12 claims
- 1577US5759733ALiquid developer for electrostatic electrophotographyRICOH KK·Filed 1992·Granted Jun 2, 1998·22 cites·6 claims
- 1676US4764447ANon-aqueous type resin dispersion and electrophotographic developer containing said resinRICOH KK·Filed 1986·Granted Aug 16, 1988·26 cites·14 claims
- 1776US3997488AProcess for the preparation of a non-aqueous dispersion of thermoplastic resinRICOH KK·Filed 1975·Granted Dec 14, 1976·19 cites·12 claims
- 1875US4360580ALiquid developer for use in electrostatic photographyRICOH KK·Filed 1980·Granted Nov 23, 1982·19 cites·26 claims
- 1973US4250241ALiquid developer for use in electrophotographyRICOH KK·Filed 1979·Granted Feb 10, 1981·15 cites·12 claims
- 2069US5085965ANegative toner for developing latent electrostatic imagesRICOH KK·Filed 1990·Granted Feb 4, 1992·17 cites·29 claims
- 2167US4060493ALiquid electrostatic developerRICOH KK·Filed 1975·Granted Nov 29, 1977·12 cites·4 claims
- 2266US4264699ALiquid developer for use in electrophotographyRICOH KK·Filed 1979·Granted Apr 28, 1981·11 cites·8 claims
- 2365US4595646ALiquid developer for electrophotographyRICOH KK·Filed 1983·Granted Jun 17, 1986·12 cites·9 claims
- 2465US4087393ANon-aqueous resin dispersion and method of manufacturing thereofRICOH KK·Filed 1976·Granted May 2, 1978·12 cites·29 claims
- 2559US6939655B2Liquid recording materialAUSTRALIA RES LAB·Filed 2003·Granted Sep 6, 2005·5 cites·1 claims
- 2658US4634651ANon-aqueous type resin and electrophotographic developer containing the sameRICOH KK·Filed 1985·Granted Jan 6, 1987·11 cites·10 claims
- 2756US4104183ALiquid developer for use in electrostatic photography comprising natural resins and natural resin-modified thermosetting resins combined with polymersRICOH KK·Filed 1976·Granted Aug 1, 1978·10 cites·11 claims
- 2855US5169739ALiquid developer for image fixing method using heat application rollersRICOH KK·Filed 1990·Granted Dec 8, 1992·10 cites·6 claims
- 2955US4797341ALiquid developer for electrophotographyRICOH KK·Filed 1986·Granted Jan 10, 1989·9 cites·5 claims
- 3055US4388395ALiquid developer for use in electrophotographyRICOH KK·Filed 1982·Granted Jun 14, 1983·10 cites·7 claims
- 3149US4690881ALiquid developer for electrophotographyRICOH KK·Filed 1986·Granted Sep 1, 1987·8 cites·8 claims
- 3246US4957842ALiquid developer for electrostatic latent images using flushed pigmentsRICOH KK·Filed 1986·Granted Sep 18, 1990·8 cites·11 claims
- 3344US7122287B2Electrophotographic liquid developer, image forming method and apparatus using the electrophotographic liquid developerRICOH KK·Filed 2003·Granted Oct 17, 2006·2 cites·31 claims
- 3441US6522852B1Image forming process using wet developing methodRICOH KK·Filed 1998·Granted Feb 18, 2003·8 cites·10 claims
- 3538US3992342ANon-aqueous dispersion and process of preparing sameRICOH KK·Filed 1975·Granted Nov 16, 1976·8 cites·4 claims
- 3636US2002081515A1Liquid recording materialFiled 2001·Application pending·0 cites
- 3734US2004259015A1Recording liquid and image forming method using the recording liquidFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →