Inventor · disambiguated record
Yuji Sakurai
Also filed as: SAKURAI YUJI
39 granted patents·3 pending applications·791 citations·filing 1991–2020
98Inventor score
Top patents by PatentIndex Score
42 records- 0198US8798508B2Developing member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Aug 5, 2014·38 cites·9 claims
- 0298US8706011B2Developing member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Apr 22, 2014·30 cites·13 claims
- 0398US8600273B2Developing roller, process cartridge, and electrophotographic apparatusYAMADA MASAKI·Filed 2012·Granted Dec 3, 2013·33 cites·4 claims
- 0497US9952532B2Developing apparatus, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Apr 24, 2018·20 cites·9 claims
- 0597US8774677B2Developing member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Jul 8, 2014·23 cites·4 claims
- 0697US8768226B2Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2012·Granted Jul 1, 2014·28 cites·4 claims
- 0796US9482986B2Member for electrophotography, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2016·Granted Nov 1, 2016·15 cites·7 claims
- 0896US8874012B2Developing member, process cartridge and electrophotographic apparatusCANON KK·Filed 2013·Granted Oct 28, 2014·18 cites·11 claims
- 0995US10310447B2Electrophotographic member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2018·Granted Jun 4, 2019·14 cites·10 claims
- 1095US6650213B1Electromagnetic-induction coupling apparatusYAMATAKE CORP·Filed 2000·Granted Nov 18, 2003·118 cites·5 claims
- 1195US5176533AElectrical connectorDAIICHI DENSHI KOGYO·Filed 1992·Granted Jan 5, 1993·123 cites·5 claims
- 1294US10082741B2Member for electrophotography, developing apparatus, and electrophotographic apparatusCANON KK·Filed 2016·Granted Sep 25, 2018·7 cites·6 claims
- 1393US10976683B2Electrophotographic member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Apr 13, 2021·7 cites·14 claims
- 1492US9921518B2Developing roller, with conductive elastic layer having exposed protrusions, cartridge and apparatusCANON KK·Filed 2017·Granted Mar 20, 2018·18 cites·11 claims
- 1591US7979004B2Electrophotographic belt, production method of electrophotographic belt, and electrophotographic apparatusCANON KK·Filed 2006·Granted Jul 12, 2011·14 cites·8 claims
- 1691US6725002B2Process cartridge, electrophotographic apparatus and image forming methodCANON KK·Filed 2002·Granted Apr 20, 2004·37 cites·15 claims
- 1788US10935903B2Developing roller, process cartridge and image forming apparatusCANON KK·Filed 2019·Granted Mar 2, 2021·3 cites·7 claims
- 1888US10642186B2Developing member having outer surface with independent electrically insulating domains, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted May 5, 2020·3 cites·18 claims
- 1988US6379997B1Semiconductor device and method of producing the same and semiconductor device unit and method of producing the sameFUJITSU LTD·Filed 2000·Granted Apr 30, 2002·54 cites·11 claims
- 2087US9862301B2Vehicular rear panelKOITO MFG CO LTD·Filed 2015·Granted Jan 9, 2018·4 cites·10 claims
- 2186US6111306ASemiconductor device and method of producing the same and semiconductor device unit and method of producing the sameFUJITSU LTD·Filed 1997·Granted Aug 29, 2000·83 cites·12 claims
- 2283US11513529B2Audio system and method of controlling conveyer deviceYAMAHA CORP·Filed 2020·Granted Nov 29, 2022·2 cites·15 claims
- 2382US8182405B2Developing roller, developing roller production method, process cartridge, and electrophotographic apparatusKURACHI MASAHIRO·Filed 2009·Granted May 22, 2012·7 cites·6 claims
- 2480US7425672B2Exterior structure for keyboard instrumentYAMAHA CORP·Filed 2005·Granted Sep 16, 2008·13 cites·15 claims
- 2578US7201967B2Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatusCANON KK·Filed 2004·Granted Apr 10, 2007·14 cites·19 claims
- 2677US8323751B2Process for producing roller for electrophotographyKAWAMURA KUNIMASA·Filed 2011·Granted Dec 4, 2012·2 cites·6 claims
- 2765US6856776B2Endless belt comprising a meandering-prevention member, and a process cartridge and an electrophotographic apparatus using such an endless beltCANON KK·Filed 2003·Granted Feb 15, 2005·9 cites·38 claims
- 2864US7439436B2Main case body of musical keyboard instrumentYAMAHA CORP·Filed 2005·Granted Oct 21, 2008·4 cites·6 claims
- 2962US6795667B2Process cartridge and electrophotographic apparatus having an intermediate transfer beltCANON KK·Filed 2002·Granted Sep 21, 2004·8 cites·35 claims
- 3056US9695610B2Speaker coverYAMAHA CORP·Filed 2015·Granted Jul 4, 2017·1 cites·8 claims
- 3154US2014003075A1Vehicular rear panelKOITO MFG CO LTD·Filed 2013·Application pending·0 cites
- 3252US5557145AMounting construction and method of a semiconductor device by which deformation of leads is preventedFUJITSU LTD·Filed 1995·Granted Sep 17, 1996·16 cites·16 claims
- 3349US6718148B2Process cartridge, electrophotographic apparatus and image-forming methodCANON KK·Filed 2002·Granted Apr 6, 2004·4 cites·18 claims
- 3447US6853824B2Electrophotographic endless belt comprising meandering-preventive member, and process cartridge and electrophotographic apparatus having such an endless beltCANON KK·Filed 2003·Granted Feb 8, 2005·3 cites·17 claims
- 3545US7352984B2Electrophotographic endless belt, electrophotographic apparatus having electrophotographic endless belt, and process for producing electrophotographic endless beltCANON KK·Filed 2004·Granted Apr 1, 2008·2 cites·7 claims
- 3644US6766127B2Image forming apparatus having process cartridge with intermediate transfer beltCANON KK·Filed 2002·Granted Jul 20, 2004·2 cites·15 claims
- 3740US5142599APush-on connectorDAIICHI DENSHI KOGYO·Filed 1991·Granted Aug 25, 1992·9 cites·5 claims
- 3840US2006226572A1Electrophotographic endless belt, electrophotographic apparatus, and process for producing electrophotographic endless beltCANON KK·Filed 2005·Application pending·0 cites
- 3938USD763231SSpeaker coverYAMAHA CORP·Filed 2014·Granted Aug 9, 2016·3 cites·1 claims
- 4037US2006067747A1Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatusCANON KK·Filed 2005·Application pending·0 cites
- 4135US9971276B2Developing member, method of producing developing member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Granted May 15, 2018·0 cites·19 claims
- 4232US5693571AMethod for mounting a semiconductor device by which deformation of leads is preventedFUJITSU LTD·Filed 1996·Granted Dec 2, 1997·2 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Yuji Sakurai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →