Inventor · disambiguated record
Masami Tomita
Also filed as: TOMITA MASAMI
152 granted patents·22 pending applications·4,501 citations·filing 1984–2015
99Inventor score
Top patents by PatentIndex Score
174 records- 0199US7702271B2Fixing device, and image forming apparatus using the fixing deviceRICOH KK·Filed 2008·Granted Apr 20, 2010·61 cites·35 claims
- 0299US7437111B2Fixing device, and image forming apparatus using the fixing deviceRICOH KK·Filed 2005·Granted Oct 14, 2008·73 cites·35 claims
- 0399US7374851B2Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming methodRICOH KK·Filed 2006·Granted May 20, 2008·67 cites·25 claims
- 0499US7318989B2Toner, developer, toner container, process cartridge, image forming apparatus, and image forming methodRICOH KK·Filed 2006·Granted Jan 15, 2008·71 cites·14 claims
- 0599US6660443B2Dry toner and image forming method using sameRICOH KK·Filed 2002·Granted Dec 9, 2003·138 cites·35 claims
- 0699US6363229B1Full-color toner image fixing method and apparatusRICOH KK·Filed 2000·Granted Mar 26, 2002·174 cites·18 claims
- 0798US7313353B2Fixing unit with heat-resisting resin base member and image forming toner for use in the fixing unitRICOH KK·Filed 2006·Granted Dec 25, 2007·87 cites·33 claims
- 0898US7299003B2Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumptionRICOH KK·Filed 2005·Granted Nov 20, 2007·50 cites·19 claims
- 0998US7127204B2Belt fixing unit with heat-resisting resin base member and image forming toner for use in the fixing unitRICOH KK·Filed 2004·Granted Oct 24, 2006·101 cites·19 claims
- 1098US6936390B2Toner, method of producing same and image forming deviceRICOH KK·Filed 2003·Granted Aug 30, 2005·93 cites·18 claims
- 1198US6852462B2Toner, method of forming the toner, and image forming method and apparatus using the tonerRICOH KK·Filed 2002·Granted Feb 8, 2005·103 cites·16 claims
- 1298US6787280B2Electrophotographic toner and method of producing sameRICOH KK·Filed 2002·Granted Sep 7, 2004·102 cites·49 claims
- 1398US6682866B2Toner for dry developingRICOH KK·Filed 2001·Granted Jan 27, 2004·98 cites·19 claims
- 1498US6103441AColor toner for electrophotographyRICOH KK·Filed 1999·Granted Aug 15, 2000·148 cites·5 claims
- 1598US6074794AToner for dry developingRICOH KK·Filed 1998·Granted Jun 13, 2000·134 cites·15 claims
- 1697US7272354B2Cleaning unit and image forming apparatus having multiple cleaning bladesRICOH KK·Filed 2006·Granted Sep 18, 2007·27 cites·46 claims
- 1797US6849369B2Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and developing method using the tonerRICOH KK·Filed 2002·Granted Feb 1, 2005·91 cites·23 claims
- 1897US6846604B2Toner and image forming apparatus using the tonerRICOH KK·Filed 2002·Granted Jan 25, 2005·81 cites·21 claims
- 1997US6800412B2Toner for dry developingRICOH KK·Filed 2003·Granted Oct 5, 2004·61 cites·21 claims
- 2097US6756175B2Method for fixing tonerRICOH KK·Filed 2002·Granted Jun 29, 2004·90 cites·23 claims
- 2197US6449423B1Recording and playback apparatus for continuous playback of fragmented signalsSONY CORP·Filed 2000·Granted Sep 10, 2002·62 cites·14 claims
- 2297US5840456AColor toner comprising two binder resins of differing softening pointRICOH KK·Filed 1996·Granted Nov 24, 1998·125 cites·15 claims
- 2397US4762763AToner for developing electrostatic latent imageRICOH KK·Filed 1986·Granted Aug 9, 1988·79 cites·18 claims
- 2496US7521164B2Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming methodRICOH KK·Filed 2008·Granted Apr 21, 2009·22 cites·7 claims
- 2596US7429442B2Toner, and two component developer and image forming apparatus using the tonerRICOH KK·Filed 2005·Granted Sep 30, 2008·27 cites·15 claims
- 2696US7373101B2Method and apparatus for image forming and effectively applying lubricant to an image bearing memberRICOH KK·Filed 2005·Granted May 13, 2008·24 cites·34 claims
- 2796US7313347B2Cleaning device, process cartridge, image forming apparatus and tonerRICOH KK·Filed 2005·Granted Dec 25, 2007·32 cites·31 claims
- 2896US7056638B1Toner for electrophotography, developer using the same, process cartridge using the same, image-forming apparatus using the same, and image-forming process using the sameRICOH KK·Filed 2003·Granted Jun 6, 2006·64 cites·25 claims
- 2996US6824945B2Electrophotographic tonerRICOH KK·Filed 2002·Granted Nov 30, 2004·70 cites·14 claims
- 3096US6740460B2Dry tonerRICOH KK·Filed 2002·Granted May 25, 2004·82 cites·8 claims
- 3196US5225303ADry-type toner including waxes release agent for electrophotographyRICOH KK·Filed 1991·Granted Jul 6, 1993·63 cites·11 claims
- 3296US4562136ATwo-component dry-type developerRICOH KK·Filed 1984·Granted Dec 31, 1985·45 cites·14 claims
- 3395US7266324B2Charging device, and process cartridge and image forming apparatus using the charging deviceRICOH KK·Filed 2006·Granted Sep 4, 2007·18 cites·15 claims
- 3495US7129013B2Toner and developer for developing latent electrostatic images, and image forming apparatusRICOH KK·Filed 2004·Granted Oct 31, 2006·55 cites·23 claims
- 3595US7056636B2Dry toner, and process cartridge, image forming process and apparatus using the sameRICOH KK·Filed 2003·Granted Jun 6, 2006·58 cites·25 claims
- 3694US7396630B2Toner, developer including the toner, and method for fixing toner imageRICOH KK·Filed 2006·Granted Jul 8, 2008·14 cites·21 claims
- 3794US7005223B2Toner composition and method for manufacturing the toner compositionRICOH KK·Filed 2002·Granted Feb 28, 2006·45 cites·12 claims
- 3894US5721083ADry color toner for electrophotography and production process thereofRICOH KK·Filed 1995·Granted Feb 24, 1998·66 cites·15 claims
- 3993US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 4093US7587161B2Fixer and image forming apparatusRICOH KK·Filed 2005·Granted Sep 8, 2009·16 cites·31 claims
- 4193US7419756B2Dry toner, method for manufacturing the same, image forming apparatus, and image forming methodRICOH KK·Filed 2007·Granted Sep 2, 2008·13 cites·16 claims
- 4293US7292816B2Method and apparatus for electrophotographic image forming capable of effectively removing residual toner, a cleaning mechanism used therein, a process cartridge including the cleaning mechanism used in the apparatus, and toner used in the apparatusRICOH KK·Filed 2005·Granted Nov 6, 2007·16 cites·52 claims
- 4393US7217487B2Toner, developer using the same, toner container using the same, process cartridge using the same, image-forming process using the same and image-forming apparatus using the sameRICOH KK·Filed 2006·Granted May 15, 2007·12 cites·18 claims
- 4493US7157201B2Toner for developing latent electrostatic image, container having the same, developer using the same, process for developing using the same, image-forming process using the same, image-forming apparatus using the same, and image-forming process cartridge using the sameRICOH KK·Filed 2003·Granted Jan 2, 2007·34 cites·26 claims
- 4593US4590141ACarrier particles for use in a two-component dry-type developer for developing latent electrostatic imagesRICOH KK·Filed 1984·Granted May 20, 1986·46 cites·13 claims
- 4692US7626728B2Method and apparatus for calcuating color differences on measured evaluation charts to evaluate color reproducibility considering image homogeneityCANON KK·Filed 2006·Granted Dec 1, 2009·17 cites·11 claims
- 4792US7493075B2Cleaning device, process cartridge and image forming apparatusRICOH KK·Filed 2007·Granted Feb 17, 2009·13 cites·15 claims
- 4892US7477862B2Charged device, cleaning device, process cartridge, toner, and image-forming device that uses theseRICOH KK·Filed 2005·Granted Jan 13, 2009·13 cites·15 claims
- 4992US7218877B2Charging device, and process cartridge and image forming apparatus including the charging device using the sameRICOH KK·Filed 2006·Granted May 15, 2007·12 cites·16 claims
- 5092US7157199B2Toner, developer including the toner, container containing the toner or the developer and method of producing the tonerRICOH KK·Filed 2003·Granted Jan 2, 2007·32 cites·17 claims
Showing the top 50 of 174 patent records by PatentIndex Score.
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