Inventor · disambiguated record
Hiroshi Yusa
Also filed as: YUSA HIROSHI
37 granted patents·2 pending applications·1,030 citations·filing 1987–2015
98Inventor score
Top patents by PatentIndex Score
39 records- 0198US7267919B2TonerCANON KK·Filed 2006·Granted Sep 11, 2007·33 cites·9 claims
- 0294US7097951B2TonerCANON KK·Filed 2005·Granted Aug 29, 2006·15 cites·1 claims
- 0394US6300024B1Toner, two-component type developer, heat fixing method, image forming method and apparatus unitCANON KK·Filed 2000·Granted Oct 9, 2001·56 cites·166 claims
- 0494US5137796AMagnetic developer, comprising spherical particles magneticCANON KK·Filed 1990·Granted Aug 11, 1992·58 cites·12 claims
- 0593US5139914ADeveloper for developing electrostatic images and image forming apparatusCANON KK·Filed 1990·Granted Aug 18, 1992·47 cites·22 claims
- 0692US6875549B2Dry toner, toner production process, image forming method and process cartridgeCANON KK·Filed 2002·Granted Apr 5, 2005·41 cites·10 claims
- 0791US6485875B1Toner and resin composition for the tonerCANON KK·Filed 2000·Granted Nov 26, 2002·41 cites·42 claims
- 0890US6881527B2Toner, and process cartridgeCANON KK·Filed 2003·Granted Apr 19, 2005·36 cites·6 claims
- 0990US5700616ADeveloper for developing an electrostatic image and image forming methodCANON KK·Filed 1996·Granted Dec 23, 1997·55 cites·38 claims
- 1090US5307122AImage forming apparatus apparatus unit facsimile apparatus and developer comprising hydrophobic silica fine powder for developing electrostatic imagesCANON KK·Filed 1990·Granted Apr 26, 1994·33 cites·75 claims
- 1189US5262267AMagnetic developer, image forming method and image forming apparatusCANON KK·Filed 1992·Granted Nov 16, 1993·40 cites·18 claims
- 1288US5840457AMagnetic black toner and multi-color or full-color image forming methodCANON KK·Filed 1997·Granted Nov 24, 1998·47 cites·59 claims
- 1388US5534981AImage forming apparatus and developer for developing electrostatic imagesCANON KK·Filed 1993·Granted Jul 9, 1996·29 cites·99 claims
- 1488US5424810AMagnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatusCANON KK·Filed 1992·Granted Jun 13, 1995·37 cites·132 claims
- 1586US7001703B2TonerCANON KK·Filed 2003·Granted Feb 21, 2006·20 cites·2 claims
- 1686US5215845AImage forming method and image forming apparatusCANON KK·Filed 1991·Granted Jun 1, 1993·36 cites·30 claims
- 1785US6033817AToner for developing electrostatic image and image forming methodCANON KK·Filed 1997·Granted Mar 7, 2000·39 cites·213 claims
- 1885US5338638AToner for developing electrostatic image and process for production thereofCANON KK·Filed 1991·Granted Aug 16, 1994·30 cites·49 claims
- 1984US5319424ADeveloper for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatusCANON KK·Filed 1993·Granted Jun 7, 1994·25 cites·87 claims
- 2083US6002895AProcess cartridgeCANON KK·Filed 1997·Granted Dec 14, 1999·34 cites·23 claims
- 2183US5912101AToner for forming an image, image forming method and heat-fixing methodCANON KK·Filed 1998·Granted Jun 15, 1999·36 cites·64 claims
- 2281US5270770AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1992·Granted Dec 14, 1993·21 cites·35 claims
- 2380US5180649AToner having crosslinkages and method of fixing sameCANON KK·Filed 1990·Granted Jan 19, 1993·26 cites·58 claims
- 2479US6214509B1Toner and image forming methodCANON KK·Filed 1999·Granted Apr 10, 2001·28 cites·75 claims
- 2579US5464722AProduction of toner for developing electrostatic imagesCANON KK·Filed 1994·Granted Nov 7, 1995·23 cites·29 claims
- 2678US5270143ADeveloper for developing electrostatic image, image forming method, electrophotographic apparatus, apparatus unit, and facsimile apparatusCANON KK·Filed 1991·Granted Dec 14, 1993·19 cites·32 claims
- 2778US4904562AProcess for producing encapsulated tonerCANON KK·Filed 1987·Granted Feb 27, 1990·20 cites·58 claims
- 2876US5447815ADeveloper for developing electrostatic image and image forming methodCANON KK·Filed 1993·Granted Sep 5, 1995·20 cites·44 claims
- 2972US5210617ADeveloper for developing electrostatic images and image forming apparatusCANON KK·Filed 1992·Granted May 11, 1993·18 cites·83 claims
- 3069US5736288AToner for developing electrostatic images, process cartridge, and image forming methodCANON KK·Filed 1995·Granted Apr 7, 1998·20 cites·50 claims
- 3167US5663026AMagnetic toner, process cartridge and image forming methodCANON KK·Filed 1996·Granted Sep 2, 1997·18 cites·29 claims
- 3256US5217836AToner for developing electrostatic imagesCANON KK·Filed 1990·Granted Jun 8, 1993·15 cites·18 claims
- 3344US5802428AImages forming apparatus and developer for developing electrostatic imagesCANON KK·Filed 1995·Granted Sep 1, 1998·5 cites·63 claims
- 3439US5392103AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1993·Granted Feb 21, 1995·3 cites·20 claims
- 3536US5510223AImage forming method comprising electrostatic transfer of developed image and corresponding image forming apparatusCANON KK·Filed 1994·Granted Apr 23, 1996·2 cites·26 claims
- 3636US5422707AToner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatusCANON KK·Filed 1994·Granted Jun 6, 1995·4 cites·62 claims
- 3733US2004110076A1Magnetic tonerFiled 2003·Application pending·0 cites
- 3833US2002055053A1TonerFiled 2001·Application pending·0 cites
- 3930US11362388B2Battery pack and electric deviceMURATA MANUFACTURING CO·Filed 2015·Granted Jun 14, 2022·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →