Inventor · disambiguated record
Junji Shirakawa
Also filed as: SHIRAKAWA JUNJI
33 granted patents·3 pending applications·334 citations·filing 1989–2015
97Inventor score
Top patents by PatentIndex Score
36 records- 0198US7722039B2Sheet conveying device and image forming apparatusRICOH KK·Filed 2008·Granted May 25, 2010·42 cites·10 claims
- 0294US5172900APaper feed mechanismHITACHI KOKI KK·Filed 1991·Granted Dec 22, 1992·59 cites·2 claims
- 0392US8238793B2Belt device and image forming apparatus having a belt correcting unit and an adjusting unitNAKURA MAKOTO·Filed 2008·Granted Aug 7, 2012·12 cites·16 claims
- 0490US9348284B2Sheet conveyor and image forming apparatus incorporating the sheet conveyorWATANABE TAKESHI·Filed 2015·Granted May 24, 2016·5 cites·20 claims
- 0590US8317192B2Sheet conveyance unit and image forming apparatus including sameKARIKUSA YUJI·Filed 2011·Granted Nov 27, 2012·9 cites·20 claims
- 0690US8014701B2Contacting and separating mechanism and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 6, 2011·11 cites·13 claims
- 0789US8025288B2Conveying device and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 27, 2011·12 cites·12 claims
- 0888US8419013B2Sheet aligning device and image forming apparatus including the sameMUNEYASU TAKAYUKI·Filed 2007·Granted Apr 16, 2013·10 cites·22 claims
- 0987US8417176B2Image forming apparatusSHOJI YUTAKA·Filed 2008·Granted Apr 9, 2013·10 cites·10 claims
- 1087US6254086B1Sheet accommodating deviceHITACHI KOKI KK·Filed 2000·Granted Jul 3, 2001·28 cites·12 claims
- 1185US8577261B2Belt device and image forming apparatusNAKURA MAKOTO·Filed 2012·Granted Nov 5, 2013·3 cites·25 claims
- 1284US8213851B2Conveying device and image forming apparatusSHOJI YUTAKA·Filed 2008·Granted Jul 3, 2012·9 cites·9 claims
- 1383US8515310B2Pressing mechanism, transfer device, and image forming apparatusNAKURA MAKOTO·Filed 2009·Granted Aug 20, 2013·7 cites·11 claims
- 1479US8985578B2Sheet aligning device and image forming apparatus including the sameMUNEYASU TAKAYUKI·Filed 2013·Granted Mar 24, 2015·3 cites·6 claims
- 1579US7822359B2Image forming apparatus having a control device which is rotatably linkedRICOH KK·Filed 2007·Granted Oct 26, 2010·6 cites·12 claims
- 1678US8355642B2Image forming apparatus which continues to convey a sheet if the sheet is only slightly delayedRICOH CO LTD·Filed 2009·Granted Jan 15, 2013·5 cites·8 claims
- 1772US4929982ASheet path in an electrophotographic printerIBM·Filed 1989·Granted May 29, 1990·19 cites·9 claims
- 1871US5150893APaper feed mechanism with plural support tables for supplying cut sheets to a printing apparatusHITACHI KOKI KK·Filed 1991·Granted Sep 29, 1992·19 cites·5 claims
- 1970US8498566B2Image forming apparatusSHOJI YUTAKA·Filed 2008·Granted Jul 30, 2013·3 cites·22 claims
- 2069US7931263B2Image forming system having enhanced functionalityRICOH CO LTD·Filed 2007·Granted Apr 26, 2011·3 cites·20 claims
- 2168US7010242B2Image forming apparatusRICOH PRINTING SYSTEMS INC·Filed 2003·Granted Mar 7, 2006·13 cites·22 claims
- 2267US9193550B2Sheet aligning device and image forming apparatus including the sameMUNEYASU TAKAYUKI·Filed 2015·Granted Nov 24, 2015·1 cites·6 claims
- 2361US8095056B2Pressure-applying device, transfer device, and image forming apparatusMIKAJIRI SUSUMU·Filed 2008·Granted Jan 10, 2012·2 cites·11 claims
- 2456US2013294804A1Image forming apparatusSHOJI YUTAKA·Filed 2013·Application pending·0 cites
- 2554US8113514B2Sheet decurling device and image forming apparatusSEKINO YASUYUKI·Filed 2008·Granted Feb 14, 2012·2 cites·10 claims
- 2654US6640078B2Electrophotographic apparatus having a paper holding memberHITACHI KOKI KK·Filed 2001·Granted Oct 28, 2003·5 cites·9 claims
- 2754USD413140SPrinter for a computerHITACHI KOKI KK·Filed 1998·Granted Aug 24, 1999·8 cites·1 claims
- 2850US5937261AImage recording apparatus, and sheet conveying method thereofHITACHI KOKI KK·Filed 1998·Granted Aug 10, 1999·9 cites·6 claims
- 2947US5179412ATransfer unit for xerographic printing machine with constant ventilating interiorHITACHI KOKI KK·Filed 1991·Granted Jan 12, 1993·7 cites·7 claims
- 3045US6137968AImage forming apparatusHITACHI KOKI KK·Filed 1999·Granted Oct 24, 2000·8 cites·2 claims
- 3145US2008251998A1Sheet aligning device and image forming apparatus using the sameMUNEYASU TAKAYUKI·Filed 2008·Application pending·0 cites
- 3242US8160462B2Image forming apparatus having a transport status detection unitSHOJI YUTAKA·Filed 2008·Granted Apr 17, 2012·0 cites·14 claims
- 3341US8451466B2Image forming apparatusSHOJI YUTAKA·Filed 2008·Granted May 28, 2013·0 cites·9 claims
- 3441US2009060608A1Image forming apparatusRICOH KK·Filed 2008·Application pending·0 cites
- 3536USD438892SPhotosensitive drum for printerHITACHI KOKI KK·Filed 2000·Granted Mar 13, 2001·2 cites·1 claims
- 3632US5182605AXerographic printing machine with an improved transfer unitHITACHI KOKI KK·Filed 1991·Granted Jan 26, 1993·2 cites·4 claims
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