Inventor · disambiguated record
Hideaki Yasunaga
Also filed as: YASUNAGA HIDEAKI
49 granted patents·10 pending applications·256 citations·filing 1995–2017
98Inventor score
Top patents by PatentIndex Score
59 records- 0196US7556904B2Toner for electrostatic development, developer, image forming method, image-forming apparatus and process for cartridge using the sameRICOH KK·Filed 2006·Granted Jul 7, 2009·23 cites·17 claims
- 0295US7720428B2Toner recovery apparatus, process cartridge, and image forming apparatusRICOH KK·Filed 2008·Granted May 18, 2010·19 cites·13 claims
- 0395US7695885B2Developer and image forming method using the developerRICOH KK·Filed 2007·Granted Apr 13, 2010·18 cites·20 claims
- 0495US7550242B2Toner, toner manufacturing method, developer, image forming apparatus, and process cartridge for the image forming apparatusRICOH KK·Filed 2006·Granted Jun 23, 2009·22 cites·26 claims
- 0593US7749671B2Toner for developing a latent electrostatic image, image-forming method, image-forming apparatus and process cartridge using the sameRICOH KK·Filed 2006·Granted Jul 6, 2010·15 cites·9 claims
- 0692US7820348B2Toner recovery apparatus, process cartridge, and image forming apparatusRICOH KK·Filed 2010·Granted Oct 26, 2010·6 cites·4 claims
- 0792US7556906B2Toner, and image forming method, image forming apparatus, and process cartridge using the tonerRICOH KK·Filed 2006·Granted Jul 7, 2009·13 cites·19 claims
- 0890US7587159B2Image forming method and apparatus including a relationship between secondary roller diameter and recording medium ingress positionRICOH KK·Filed 2007·Granted Sep 8, 2009·11 cites·20 claims
- 0989US7838193B2Toner and image forming method using the tonerRICOH CO LTD·Filed 2007·Granted Nov 23, 2010·10 cites·20 claims
- 1088US7727694B2Toner 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
- 1184US8526864B2Image developer, process cartridge, and image forming apparatusNAKAGAWA SHUUICHI·Filed 2011·Granted Sep 3, 2013·6 cites·11 claims
- 1284US7817946B2Developing device, image developing method, image forming apparatus, image forming method, and process cartridgeRICOH KK·Filed 2007·Granted Oct 19, 2010·7 cites·12 claims
- 1383US9026015B2Developing roller, and developing device, process cartridge and image forming method and apparatus using the developing rollerJURI KEIICHIRO·Filed 2014·Granted May 5, 2015·3 cites·10 claims
- 1482US7833686B2Toner and method for producing the same, toner kit, and developer, process cartridge, image forming method and image forming apparatusRICOH CO LTD·Filed 2006·Granted Nov 16, 2010·6 cites·19 claims
- 1580US9625858B2Intermediate transfer belt, and image forming apparatus using the beltIZUTANI AKIRA·Filed 2016·Granted Apr 18, 2017·2 cites·7 claims
- 1675US8021814B2Toner, and oilless fixing method and process cartridge using the tonerRICOH CO LTD·Filed 2008·Granted Sep 20, 2011·4 cites·19 claims
- 1775US7873300B2Single component development device, process cartridge and tonerRICOH CO LTD·Filed 2008·Granted Jan 18, 2011·4 cites·10 claims
- 1874US9851656B2Developing roller, toner and image forming apparatusJURI KEIICHIRO·Filed 2016·Granted Dec 26, 2017·1 cites·10 claims
- 1973US9921526B2Semiconductive resin composition, member for electrophotography and image forming apparatusTAKAHASHI HIROAKI·Filed 2015·Granted Mar 20, 2018·1 cites·9 claims
- 2073US9778602B2Image forming apparatusJURI KEIICHIRO·Filed 2016·Granted Oct 3, 2017·1 cites·4 claims
- 2170US7979010B2Image forming apparatus and image forming methodRICOH CO LTD·Filed 2008·Granted Jul 12, 2011·3 cites·12 claims
- 2269US9891558B2Semiconductive resin composition, member for electrophotography and image forming apparatusMATSUSHITA MAKOTO·Filed 2015·Granted Feb 13, 2018·1 cites·9 claims
- 2369US9098013B2Developing roller, developing device, process cartridge, and image forming apparatusYASUNAGA HIDEAKI·Filed 2014·Granted Aug 4, 2015·1 cites·10 claims
- 2468US5849452Adeveloping method using an oscillated electric field and including a specified toner and carrierMINOLTA CO LTD·Filed 1997·Granted Dec 15, 1998·19 cites·20 claims
- 2565US7867680B2Non-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
- 2662US8103199B2Developing device, and image forming method and process cartridge using the developing deviceYASUNAGA HIDEAKI·Filed 2008·Granted Jan 24, 2012·2 cites·15 claims
- 2762US7970323B2Developing 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
- 2858US8043779B2Pulverized tonerRICOH CO LTD·Filed 2007·Granted Oct 25, 2011·1 cites·10 claims
- 2958US8041270B2Image developer using one-component developerRICOH CO LTD·Filed 2008·Granted Oct 18, 2011·1 cites·7 claims
- 3057US9122204B2Developing device, process cartridge, image forming apparatus, and image forming methodJURI KEIICHIRO·Filed 2014·Granted Sep 1, 2015·0 cites·7 claims
- 3156US9983505B2Developing roller, process cartridge, image forming apparatus and image forming methodYASUNAGA HIDEAKI·Filed 2017·Granted May 29, 2018·0 cites·12 claims
- 3256US8053154B2Toner and image forming methodRICOH CO LTD·Filed 2007·Granted Nov 8, 2011·1 cites·12 claims
- 3356US7981593B2Toner, 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
- 3454US9031478B2Developing roller including a roughened outermost surface, and developing device and image forming apparatus including the sameJURI KEIICHIRO·Filed 2012·Granted May 12, 2015·0 cites·14 claims
- 3553US8329371B2Toner 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
- 3653US6130019ABinder carrierMINOLTA CO LTD·Filed 1998·Granted Oct 10, 2000·10 cites·25 claims
- 3752US10001731B2Composition for seamless belt, and image forming apparatus using the beltMATSUSHITA MAKOTO·Filed 2015·Granted Jun 19, 2018·0 cites·6 claims
- 3852US9720354B2Intermediate transfer beltJURI KEIICHIRO·Filed 2015·Granted Aug 1, 2017·0 cites·9 claims
- 3951US8192910B2Image forming method, image forming apparatus and process cartridgeKATOH HIROAKI·Filed 2009·Granted Jun 5, 2012·1 cites·8 claims
- 4051US6306552B1Carrier having specified bet specific surface area and dynamic current value and two-component developer thereofMINOLTA CO LTD·Filed 2000·Granted Oct 23, 2001·4 cites·20 claims
- 4150US5834152ACarrier and developer for electrophotographic latent image development, and image forming method using sameMINOLTA CO LTD·Filed 1996·Granted Nov 10, 1998·9 cites·33 claims
- 4245US8007973B2Full-color toner kit, process cartridge, and image forming methodRICOH CO LTD·Filed 2007·Granted Aug 30, 2011·0 cites·14 claims
- 4342US2015078790A1Developing device, process cartridge, and image forming apparatusISHIKAWA YOSHIMICHI·Filed 2014·Application pending·0 cites
- 4440US2009117481A1Toner for one-component developerYASUNAGA HIDEAKI·Filed 2008·Application pending·0 cites
- 4539US2007217842A1Cleaning device, image-forming apparatus, image-forming process, and process cartridgeKATO HIROAKI·Filed 2007·Application pending·0 cites
- 4639US2008070149A1Pulverized toner, developing apparatus, process cartridge, image forming apparatus and image forming methodKATO HIROAKI·Filed 2007·Application pending·0 cites
- 4738US2008279591A1One-component toner and image forming methodYASUNAGA HIDEAKI·Filed 2007·Application pending·0 cites
- 4838US2012237270A1Developing rollerJURI KEIICHIRO·Filed 2012·Application pending·0 cites
- 4937US5736287ADevelopment methodMINOLTA CO LTD·Filed 1997·Granted Apr 7, 1998·4 cites·20 claims
- 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 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →