Inventor · disambiguated record
Sei Onuma
Also filed as: ONUMA SEI
22 granted patents·1 pending application·137 citations·filing 2007–2015
94Inventor score
Top patents by PatentIndex Score
23 records- 0197US8050593B2Image forming apparatus including a mechanism for reliably mounting a process unitRICOH CO LTD·Filed 2008·Granted Nov 1, 2011·34 cites·12 claims
- 0294US7937015B2Image forming apparatus having a development device mixing and conveying developerRICOH CO LTD·Filed 2009·Granted May 3, 2011·17 cites·18 claims
- 0393US7941069B2Process cartridge having air inlets and outlets for cooling gears disposed in the process cartridgeRICOH CO LTD·Filed 2007·Granted May 10, 2011·17 cites·18 claims
- 0491US8412056B2Image forming apparatus performing image formation by conveying paperFURUICHI YUUSUKE·Filed 2010·Granted Apr 2, 2013·7 cites·12 claims
- 0589US7611106B2Attaching structure of supporting legs for apparatusRICOH KK·Filed 2008·Granted Nov 3, 2009·15 cites·9 claims
- 0684US8424863B2Paper feeder and image forming apparatusKITA NOBUHIKO·Filed 2011·Granted Apr 23, 2013·6 cites·6 claims
- 0784US7844196B2Image forming apparatusRICOH CO LTD·Filed 2008·Granted Nov 30, 2010·7 cites·15 claims
- 0883US8611783B2Interlock system and image forming apparatus incorporating interlock systemONUMA SEI·Filed 2011·Granted Dec 17, 2013·4 cites·12 claims
- 0979US8311438B2Interlock device and image forming apparatus incorporating sameONUMA SEI·Filed 2010·Granted Nov 13, 2012·3 cites·14 claims
- 1075US7854418B2Image forming apparatus including supporting legsRICOH CO LTD·Filed 2007·Granted Dec 21, 2010·4 cites·4 claims
- 1174US7751749B2Image forming apparatusRICOH KK·Filed 2008·Granted Jul 6, 2010·4 cites·9 claims
- 1273US8417142B2Image forming apparatus having developing device cooling mechanism, and control method thereforFURUICHI YUUSUKE·Filed 2009·Granted Apr 9, 2013·4 cites·9 claims
- 1372US8417155B2Swing-gear mechanism and image forming apparatus having multiple speed modesFUKUSHIMA TATSUO·Filed 2010·Granted Apr 9, 2013·4 cites·20 claims
- 1469US8020848B2Paper feeder and image forming apparatusRICOH CO LTD·Filed 2007·Granted Sep 20, 2011·3 cites·7 claims
- 1568US7835661B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Nov 16, 2010·3 cites·14 claims
- 1663US8010012B2Image forming apparatus including a latent image carrier and an exposing unitRICOH CO LTD·Filed 2008·Granted Aug 30, 2011·2 cites·13 claims
- 1763US7983596B2Housing structure and image forming apparatusRICOH CO LTD·Filed 2009·Granted Jul 19, 2011·2 cites·13 claims
- 1859US7925199B2Image forming apparatusRICOH CO LTD·Filed 2008·Granted Apr 12, 2011·1 cites·7 claims
- 1957US9025986B2Moving device assembly and image forming apparatus including the moving device assemblySHIGA YUUKI·Filed 2013·Granted May 5, 2015·0 cites·19 claims
- 2056US9182719B2Moving device assembly and image forming apparatus including the moving device assemblySHIGA YUUKI·Filed 2015·Granted Nov 10, 2015·0 cites·17 claims
- 2150US2011062835A1Image forming apparatus including supporting legsIDEHARA RYOH·Filed 2010·Application pending·0 cites
- 2244US8169460B2Image forming apparatusFURUICHI YUUSUKE·Filed 2008·Granted May 1, 2012·0 cites·16 claims
- 2343US8526853B2Image forming apparatus having toner passage blocking mechanismTADA KAORU·Filed 2010·Granted Sep 3, 2013·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →