Inventor · disambiguated record
Yasufumi Kayahara
Also filed as: KAYAHARA YASUFUMI
7 granted patents·14 citations·filing 2004–2011
77Inventor score
Technology areasG03G
Top patents by PatentIndex Score
7 records- 0176US9658569B2Image forming apparatus with toner refilling unitKAYAHARA YASUFUMI·Filed 2010·Granted May 23, 2017·3 cites·12 claims
- 0271US7529511B2Toner cartridgeFUJI XEROX CO LTD·Filed 2006·Granted May 5, 2009·3 cites·9 claims
- 0361US8472847B2Developing device and image forming apparatusKAYAHARA YASUFUMI·Filed 2010·Granted Jun 25, 2013·1 cites·5 claims
- 0458US7203451B2Development roller, development roller base, development roller manufacturing method, and image forming apparatusFUJI XEROX CO LTD·Filed 2004·Granted Apr 10, 2007·7 cites·12 claims
- 0551US7912409B2Toner cartridgeFUJI XEROX CO LTD·Filed 2008·Granted Mar 22, 2011·0 cites·8 claims
- 0644US8787779B2Image forming apparatusKAYAHARA YASUFUMI·Filed 2011·Granted Jul 22, 2014·0 cites·8 claims
- 0742US7647010B2Toner cartridge and image forming apparatusFUJI XEROX CO LTD·Filed 2006·Granted Jan 12, 2010·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →