Inventor · disambiguated record
Kumi Hasegawa
Also filed as: HASEGAWA KUMI
21 granted patents·7 pending applications·728 citations·filing 1996–2011
96Inventor score
Technology areasG03G
Top patents by PatentIndex Score
28 records- 0199US6468706B2Two-component developer, container filled with the two-component developer, and image formation apparatusRICOH KK·Filed 2001·Granted Oct 22, 2002·130 cites·20 claims
- 0296US6544704B1Two-component developer, container filled with the two-component developer, and image formation apparatusRICOH KK·Filed 2002·Granted Apr 8, 2003·59 cites·20 claims
- 0395US6303257B1Electrophotographic toner and image forming method using the tonerRICOH KK·Filed 2000·Granted Oct 16, 2001·66 cites·8 claims
- 0494US6924073B2Toner for developing electrostatic latent image, toner cartridge, developer, developer cartridge, image forming method, and image forming apparatusRICOH KK·Filed 2002·Granted Aug 2, 2005·52 cites·29 claims
- 0594US6432590B1Electrophotographic toner and image forming method using the tonerRICOH KK·Filed 2000·Granted Aug 13, 2002·72 cites·34 claims
- 0694US6221549B1Toner for developing latent electrostatic images, binder resin for use in the toner, and image formation method using the tonerRICOH KK·Filed 1999·Granted Apr 24, 2001·64 cites·16 claims
- 0793US7163774B2Toner for forming image, method for developing electrostatic latent image, method for fixing toner image, image forming method and process cartridge using the tonerRICOH KK·Filed 2004·Granted Jan 16, 2007·41 cites·49 claims
- 0893US6255028B1Electrophotographic toner and image forming method using the tonerRICOH KK·Filed 2000·Granted Jul 3, 2001·44 cites·22 claims
- 0991US7522857B2Toner, image forming apparatus using the same and process cartridgeRICOH KK·Filed 2005·Granted Apr 21, 2009·14 cites·17 claims
- 1090US7217485B2Toner for electrophotography, and image fixing process, image forming process, image forming apparatus and process cartridge using the sameRICOH KK·Filed 2004·Granted May 15, 2007·34 cites·18 claims
- 1190US6899986B2Image forming method and toner for use in the methodRICOH KK·Filed 2002·Granted May 31, 2005·28 cites·22 claims
- 1288US5747210AElectrostatic image developing toner and method for producing the tonerRICOH KK·Filed 1996·Granted May 5, 1998·57 cites·20 claims
- 1386US7985518B2Toner, image forming apparatus using the same, and image forming methodRICOH CO LTD·Filed 2008·Granted Jul 26, 2011·7 cites·3 claims
- 1484US7029816B2Electrographic image formation methodRICOH KK·Filed 2004·Granted Apr 18, 2006·20 cites·3 claims
- 1580US7183029B2Dry toner, toner kit, and image forming apparatus and process cartridge using the dry tonerRICOH KK·Filed 2004·Granted Feb 27, 2007·17 cites·13 claims
- 1678US8034523B2Full color toner, and its use in electrophotography methods and apparatusRICOH CO LTD·Filed 2005·Granted Oct 11, 2011·5 cites·10 claims
- 1771US7150954B2Image forming method and toner for use in the methodRICOH KK·Filed 2004·Granted Dec 19, 2006·10 cites·11 claims
- 1863US6964835B2Toner and image forming method using the tonerRICOH KK·Filed 2003·Granted Nov 15, 2005·8 cites·20 claims
- 1954US8785099B2Toner, developer including the toner, and developing device and image forming apparatus using the tonerSHU HYO·Filed 2011·Granted Jul 22, 2014·0 cites·14 claims
- 2043US8202676B2Toner for developing electrostatic latent image, and image forming method using the tonerHASEGAWA KUMI·Filed 2009·Granted Jun 19, 2012·0 cites·10 claims
- 2143US2005208403A1Toner, developer including the toner, and developing device and image forming apparatus using the tonerSHU HYO·Filed 2005·Application pending·0 cites
- 2243US2006068306A1Toner, image forming apparatus using the same, and image forming methodSHU HYO·Filed 2005·Application pending·0 cites
- 2340US8084179B2Electrostatic image developing toner having specific variation coefficient of number distribution, two-component developer, image forming method and process cartridgeHASEGAWA KUMI·Filed 2007·Granted Dec 27, 2011·0 cites·12 claims
- 2437US2009233217A1Toner, image forming method, and process cartridgeHASEGAWA KUMI·Filed 2009·Application pending·0 cites
- 2536US2002039698A1Electrophotographic image formation methodRICOH KK·Filed 2001·Application pending·0 cites
- 2635US2008220360A1Toner, and two-component developer and image forming apparatus using the tonerHASEGAWA KUMI·Filed 2008·Application pending·0 cites
- 2735US2006093943A1Magenta color toner, toner cartridge, and process cartridge and image forming apparatus using the magenta color tonerSHU HYO·Filed 2005·Application pending·0 cites
- 2835US2008102393A1Toner, method of supplying the same and process cartridgeHASEGAWA KUMI·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →