Inventor · disambiguated record
Yasuyuki Tsutsumi
Also filed as: TSUTSUMI YASUYUKI
18 granted patents·273 citations·filing 1982–2013
94Inventor score
Top patents by PatentIndex Score
18 records- 0194US4537840AFuel cell using organic, high-molecular weight electrolyteHITACHI LTD·Filed 1983·Granted Aug 27, 1985·89 cites·26 claims
- 0286US4407904AFuel cellHITACHI LTD·Filed 1982·Granted Oct 4, 1983·55 cites·8 claims
- 0382US5884130ADeveloping device with support structure for conveying meansFUJI XEROX CO LTD·Filed 1997·Granted Mar 16, 1999·35 cites·25 claims
- 0468US6594457B2Brush roll cleaning unit and image formation apparatus using itFUJI XEROX CO LTD·Filed 2002·Granted Jul 15, 2003·10 cites·7 claims
- 0567US6589700B2Image carrier and apparatus and method for recording image using image carrierFUJI XEROX CO LTD·Filed 2001·Granted Jul 8, 2003·10 cites·20 claims
- 0661US5262363AOverglaze colors for potterySAGA PREFECTURE·Filed 1993·Granted Nov 16, 1993·25 cites·2 claims
- 0759US8688018B2Developing device and image forming apparatus including the sameUEZONO TSUTOMU·Filed 2012·Granted Apr 1, 2014·1 cites·11 claims
- 0859USD518851SImage forming apparatusFUJI XEROX CO LTD·Filed 2005·Granted Apr 11, 2006·11 cites·1 claims
- 0956US6301453B1Developing unit using oscillatory bias voltageFUJI XEROX CO LTD·Filed 2000·Granted Oct 9, 2001·6 cites·10 claims
- 1053US6785494B2Image formation apparatus and charger used therewithFUJI XEROX CO LTD·Filed 2002·Granted Aug 31, 2004·5 cites·33 claims
- 1153US6674987B2Image forming apparatus having intermediate transfer bodies, brush roller devices and transfer roll device having defined axial lengthsFUJI XEROX CO LTD·Filed 2002·Granted Jan 6, 2004·5 cites·12 claims
- 1253US4528251ADifferential-pressure control device for a fuel cellHITACHI LTD·Filed 1984·Granted Jul 9, 1985·12 cites·4 claims
- 1349US9063466B2Developing device having an attaching unit for attaching developer and image forming apparatus including the sameFUJI XEROX CO LTD·Filed 2013·Granted Jun 23, 2015·0 cites·9 claims
- 1445US9002244B2Image forming apparatus including developing device using toner holding member with specific surface roughnessFUJI XEROX CO LTD·Filed 2013·Granted Apr 7, 2015·0 cites·20 claims
- 1543US9285711B2Developing device and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Mar 15, 2016·0 cites·13 claims
- 1643US9128413B2Developing device, and image forming apparatus using the sameFUJI XEROX CO LTD·Filed 2013·Granted Sep 8, 2015·0 cites·16 claims
- 1742US9164418B2Developing device, and image forming apparatus using the sameFUJI XEROX CO LTD·Filed 2013·Granted Oct 20, 2015·0 cites·20 claims
- 1840US4808492AFuel cell using liquid electrolyteHITACHI LTD·Filed 1987·Granted Feb 28, 1989·9 cites·44 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →