Inventor · disambiguated record
Kazuosa Kuma
Also filed as: KUMA KAZUOSA
40 granted patents·6 pending applications·899 citations·filing 2003–2016
98Inventor score
Top patents by PatentIndex Score
46 records- 0199US8195070B2Developer container, developer supplying device, and image forming apparatusHOSOKAWA HIROSHI·Filed 2011·Granted Jun 5, 2012·47 cites·12 claims
- 0299US8005406B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2010·Granted Aug 23, 2011·60 cites·18 claims
- 0399US7835673B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Nov 16, 2010·58 cites·28 claims
- 0499US7697870B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2009·Granted Apr 13, 2010·54 cites·26 claims
- 0599US7519317B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Apr 14, 2009·72 cites·25 claims
- 0699US7480476B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Jan 20, 2009·115 cites·20 claims
- 0799US7321744B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2004·Granted Jan 22, 2008·111 cites·49 claims
- 0897US7447469B2Image forming device and mounting member for mounting a toner container thereonRICOH KK·Filed 2005·Granted Nov 4, 2008·36 cites·49 claims
- 0997US6898407B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2003·Granted May 24, 2005·61 cites·56 claims
- 1095US7263309B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2005·Granted Aug 28, 2007·15 cites·26 claims
- 1194US7509073B2Image forming apparatus and belt unitRICOH KK·Filed 2006·Granted Mar 24, 2009·19 cites·17 claims
- 1293US7333749B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2007·Granted Feb 19, 2008·10 cites·32 claims
- 1393US7174121B2Apparatus for image forming and image developing with an improvement of toner container holdingRICOH KK·Filed 2005·Granted Feb 6, 2007·14 cites·35 claims
- 1492US7016629B2Image forming apparatus with discharging unit of increased capacityRICOH KK·Filed 2004·Granted Mar 21, 2006·30 cites·38 claims
- 1590US7933546B2Lubricant applying device and image forming apparatusRICOH CO LTD·Filed 2007·Granted Apr 26, 2011·11 cites·14 claims
- 1690US7899386B2Image forming apparatus and guide therefor capable of reducing toner scattered on recording mediumRICOH CO LTD·Filed 2006·Granted Mar 1, 2011·9 cites·18 claims
- 1790US7215907B2Method and apparatus for image forming capable of effectively eliminating color displacementsRICOH KK·Filed 2004·Granted May 8, 2007·32 cites·73 claims
- 1889US7627268B2Image forming apparatus capable of providing a stable belt movement in a belt unitRICOH KK·Filed 2006·Granted Dec 1, 2009·10 cites·11 claims
- 1989US7499665B2Belt device including an annular belt, and an image forming apparatus for detection of rotational angular speed or rotational angular displacementRICOH KK·Filed 2006·Granted Mar 3, 2009·11 cites·26 claims
- 2089US7400851B2Image forming apparatus with pressure applying members that apply pressure to support shaftsRICOH KK·Filed 2005·Granted Jul 15, 2008·11 cites·54 claims
- 2188US7313344B2Image forming apparatus with detachable power-requiring unit and unit positioning memberRICOH KK·Filed 2006·Granted Dec 25, 2007·7 cites·20 claims
- 2287US7181152B2Image forming apparatus for reliably holding attachable unitsRICOH KK·Filed 2004·Granted Feb 20, 2007·28 cites·42 claims
- 2387US6970665B2Image forming apparatus with detachable power-requiring unitRICOH KK·Filed 2003·Granted Nov 29, 2005·20 cites·17 claims
- 2486US9395659B2Image forming apparatusTANAKA SHINYA·Filed 2014·Granted Jul 19, 2016·4 cites·20 claims
- 2583US7164874B2Image forming apparatus with detachable power-requiring unitRICOH KK·Filed 2005·Granted Jan 16, 2007·5 cites·3 claims
- 2682US7609998B2Transfer unit and image forming apparatusRICOH KK·Filed 2007·Granted Oct 27, 2009·6 cites·10 claims
- 2781US7885588B2Transfer assembly and image forming apparatus including sameRICOH CO LTD·Filed 2007·Granted Feb 8, 2011·6 cites·12 claims
- 2880US7848692B2Neutralization unit and image forming apparatus having a neutralization unit for removing electric chargeRICOH CO LTD·Filed 2006·Granted Dec 7, 2010·6 cites·15 claims
- 2979US8219000B2Image forming apparatus capable of effectively performing a maintenance operationKUMA KAZUOSA·Filed 2006·Granted Jul 10, 2012·6 cites·41 claims
- 3078US7406283B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2007·Granted Jul 29, 2008·3 cites·9 claims
- 3177US7606521B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2008·Granted Oct 20, 2009·3 cites·19 claims
- 3276US8249468B2Image forming apparatusKUMA KAZUOSA·Filed 2009·Granted Aug 21, 2012·5 cites·15 claims
- 3376US7620345B2Image forming apparatus including an operation panel provided on a facingRICOH KK·Filed 2007·Granted Nov 17, 2009·3 cites·18 claims
- 3474US7831161B2Method and apparatus for image forming of effectively detecting image dataRICOH KK·Filed 2006·Granted Nov 9, 2010·4 cites·21 claims
- 3566US8139968B2Image forming apparatusKATOH TSUTOMU·Filed 2009·Granted Mar 20, 2012·3 cites·20 claims
- 3659US7706727B2Apparatus for image forming and image developing with an improvement of toner container holdingRICOH KK·Filed 2006·Granted Apr 27, 2010·1 cites·5 claims
- 3758US8315545B2Image forming apparatus utilizing both a transfer belt and a direct transfer memberSUDO KAZUHISA·Filed 2009·Granted Nov 20, 2012·2 cites·12 claims
- 3856US2013177341A1Image forming apparatus and guide therefor capable of reducing toner scattered on recording mediumSAEKI KAZUCHIKA·Filed 2013·Application pending·0 cites
- 3952US8412089B2Image forming apparatus and guide therefor capable of reducing toner scattered on recording mediumSAEKI KAZUCHIKA·Filed 2011·Granted Apr 2, 2013·0 cites·15 claims
- 4052US7302200B2Image forming apparatusRICOH KK·Filed 2005·Granted Nov 27, 2007·1 cites·5 claims
- 4148US2006120763A1Image forming apparatusISHII HIROSHI·Filed 2006·Application pending·0 cites
- 4246US9198268B2Static eliminator and image forming apparatus including sameKUMA KAZUOSA·Filed 2014·Granted Nov 24, 2015·0 cites·15 claims
- 4340US2008145102A1Surface-moving-body driving device, belt device, and image forming apparatusRICOH KK·Filed 2007·Application pending·0 cites
- 4439US2007248391A1Image forming apparatus with sheet guiding unit between transfering unit and fixing unitYOKOKAWA NOBUTO·Filed 2007·Application pending·0 cites
- 4536US2016306313A1Image forming apparatusKUMA KAZUOSA·Filed 2016·Application pending·0 cites
- 4632US2015346643A1Transfer assembly and image forming apparatus including sameKONISHI TAKAHIRO·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →