Inventor · disambiguated record
Hiroaki Katoh
Also filed as: KATOH HIROAKI
49 granted patents·7 pending applications·1,367 citations·filing 1990–2024
99Inventor score
Top patents by PatentIndex Score
56 records- 0197US5334826AMethod and apparatus for extending and confirming the service life of semiconductor laser of bar code reader by detecting current increase corresponding to temperature of semiconductor laserFUJITSU LTD·Filed 1992·Granted Aug 2, 1994·147 cites·30 claims
- 0296US5206491APlural beam, plural window multi-direction bar code reading deviceFUJITSU LTD·Filed 1991·Granted Apr 27, 1993·169 cites·8 claims
- 0395US7695885B2Developer and image forming method using the developerRICOH KK·Filed 2007·Granted Apr 13, 2010·18 cites·20 claims
- 0492US7556906B2Toner, and image forming method, image forming apparatus, and process cartridge using the tonerRICOH KK·Filed 2006·Granted Jul 7, 2009·13 cites·19 claims
- 0591US7635549B2Toner and developer, toner container, process cartridge, image forming method and image forming apparatusRICOH KK·Filed 2006·Granted Dec 22, 2009·15 cites·25 claims
- 0691US5000529AOptical scannerFUJITSU LTD·Filed 1990·Granted Mar 19, 1991·107 cites·7 claims
- 0790US5801370AMulti-directional bar code reading deviceFUJITSU LTD·Filed 1996·Granted Sep 1, 1998·120 cites·27 claims
- 0889US9448501B2Toner for developing electrostatic image, image forming apparatus, image forming method, and process cartridgeINOUE RYOTA·Filed 2013·Granted Sep 20, 2016·5 cites·15 claims
- 0989US7838193B2Toner and image forming method using the tonerRICOH CO LTD·Filed 2007·Granted Nov 23, 2010·10 cites·20 claims
- 1089US7632619B2Toner, fixing method and image forming method using the tonerRICOH KK·Filed 2006·Granted Dec 15, 2009·10 cites·13 claims
- 1188US7727694B2Toner for developing electrostatic image, and image forming method and apparatus and process cartridge using the tonerRICOH KK·Filed 2007·Granted Jun 1, 2010·9 cites·14 claims
- 1286US5693930AOptical scanner having a plurality of scanning systemsFUJITSU LTD·Filed 1996·Granted Dec 2, 1997·104 cites·40 claims
- 1386US5268565ACompact type bar code readerFUJITSU LTD·Filed 1992·Granted Dec 7, 1993·103 cites·15 claims
- 1485US6216953B1Optical reader controlling operation between different scanning modesFUJITSU LTD·Filed 1996·Granted Apr 17, 2001·76 cites·27 claims
- 1581US5992747AStationary and hand held information reading apparatus with pivot type mountingFUJITSU LTD·Filed 1996·Granted Nov 30, 1999·51 cites·29 claims
- 1681USD327878SLaser scannerFUJITSU LTD·Filed 1990·Granted Jul 14, 1992·22 cites·1 claims
- 1780US6164546AOptical reader controlling operation between different scanning modesFUJITSU LTD·Filed 1999·Granted Dec 26, 2000·49 cites·31 claims
- 1879US5314631AStationary bar code reader which can be detected and separated into a hand-held bar code readerFUJITSU LTD·Filed 1993·Granted May 24, 1994·64 cites·11 claims
- 1975US8021814B2Toner, and oilless fixing method and process cartridge using the tonerRICOH CO LTD·Filed 2008·Granted Sep 20, 2011·4 cites·19 claims
- 2075US7873300B2Single component development device, process cartridge and tonerRICOH CO LTD·Filed 2008·Granted Jan 18, 2011·4 cites·10 claims
- 2174US7222794B2Optical reader applicable to plurality of usesFUJITSU LIMITEED·Filed 2002·Granted May 29, 2007·16 cites·2 claims
- 2272US7048188B2Optical reader applicable to plurality of usesFUJITSU LTD·Filed 2002·Granted May 23, 2006·10 cites·2 claims
- 2372US6357704B1Stand for allowing adjustment of inclination angle of device loaded thereonFUJITSU LTD·Filed 2000·Granted Mar 19, 2002·12 cites·4 claims
- 2470US7055150B2Printer firmware installation method, printer and printer systemFUJI XEROX CO LTD·Filed 2001·Granted May 30, 2006·17 cites·19 claims
- 2570US5687017ARotary polyhedral mirror and method for producing the mirrorFUJITSU LTD·Filed 1996·Granted Nov 11, 1997·34 cites·13 claims
- 2668US9152066B2Toner, developer, process cartridge, and image forming apparatusINOUE RYOTA·Filed 2013·Granted Oct 6, 2015·1 cites·16 claims
- 2767US6435413B1Optical reader controlling operation between multi-scanning and single-scanning modesFUJITSU LTD·Filed 1999·Granted Aug 20, 2002·26 cites·36 claims
- 2867US5343029AOptical scanner having laser diode as light sourceFUJITSU LTD·Filed 1992·Granted Aug 30, 1994·36 cites·14 claims
- 2965US7867680B2Non-magnetic toner for one-component development and method of preparing the toner, and image developer, image forming apparatus, process cartridge and image forming methodRICOH CO LTD·Filed 2009·Granted Jan 11, 2011·2 cites·17 claims
- 3065US5880450ABar-code readerFUJITSU LTD·Filed 1997·Granted Mar 9, 1999·26 cites·3 claims
- 3164US8805222B2Image developing device, process cartridge including image developing device, and image forming device including image developing deviceNAKATAKE NAOKI·Filed 2012·Granted Aug 12, 2014·1 cites·18 claims
- 3264US6899274B2Optical reader applicable to plurality of usesFUJITSU LTD·Filed 2002·Granted May 31, 2005·6 cites·2 claims
- 3363US11921453B2Image forming apparatusYAMADA SHINTARO·Filed 2022·Granted Mar 5, 2024·0 cites·14 claims
- 3463US6860426B2Optical reader applicable to plurality of usesFUJITSU LTD·Filed 2003·Granted Mar 1, 2005·5 cites·1 claims
- 3562US8103199B2Developing device, and image forming method and process cartridge using the developing deviceYASUNAGA HIDEAKI·Filed 2008·Granted Jan 24, 2012·2 cites·15 claims
- 3662US7970323B2Developing device, developer therefor, and image forming method and apparatus, and process cartridge using the developing deviceRICOH CO LTD·Filed 2008·Granted Jun 28, 2011·2 cites·15 claims
- 3758US8041270B2Image developer using one-component developerRICOH CO LTD·Filed 2008·Granted Oct 18, 2011·1 cites·7 claims
- 3856US7981593B2Toner, developer including the toner, and image forming method and apparatus using the tonerRICOH CO LTD·Filed 2007·Granted Jul 19, 2011·1 cites·10 claims
- 3956US6811086B1Stand for pivotably mounting an optical reading deviceFUJITSU LTD·Filed 1999·Granted Nov 2, 2004·13 cites·3 claims
- 4053US8329371B2Toner for non-magnetic one-component developer, method of preparing the toner, developer and image forming methodMIKURIYA YOSHIHIRO·Filed 2007·Granted Dec 11, 2012·1 cites·18 claims
- 4151US8192910B2Image forming method, image forming apparatus and process cartridgeKATOH HIROAKI·Filed 2009·Granted Jun 5, 2012·1 cites·8 claims
- 4250US6527185B2Information reading apparatusFUJITSU LTD·Filed 2002·Granted Mar 4, 2003·1 cites·1 claims
- 4349US5095203AArticle detection device and method with shift registers and samplingFUJITSU LTD·Filed 1990·Granted Mar 10, 1992·20 cites·18 claims
- 4448US2024280927A1Image forming apparatus and print mediumYAMADA SHINTARO·Filed 2024·Application pending·0 cites
- 4547US5970184ALaser beam generation control system for optical bar code scannerFUJITSU LTD·Filed 1997·Granted Oct 19, 1999·11 cites·8 claims
- 4645US8007973B2Full-color toner kit, process cartridge, and image forming methodRICOH CO LTD·Filed 2007·Granted Aug 30, 2011·0 cites·14 claims
- 4745US5724458ALaser beam generation control system for optical bar code scannerFUJITSU LTD·Filed 1994·Granted Mar 3, 1998·10 cites·15 claims
- 4840US2009117481A1Toner for one-component developerYASUNAGA HIDEAKI·Filed 2008·Application pending·0 cites
- 4939US2007026335A1Toner, image forming method and process cartridgeYAMAMOTO ATSUSHI·Filed 2006·Application pending·0 cites
- 5037US2007238042A1Oilless-fixing toner, and image forming method, apparatus and process cartridge using the oilless-fixing tonerYASUNAGA HIDEAKI·Filed 2007·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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