Inventor · disambiguated record
Yoshihisa Ashikawa
Also filed as: ASHIKAWA YOSHIHISA
8 granted patents·39 citations·filing 2003–2012
83Inventor score
Top patents by PatentIndex Score
8 records- 0187US8743384B2Image forming apparatus and communication control program productISHII TATSUYA·Filed 2011·Granted Jun 3, 2014·5 cites·8 claims
- 0275US7853164B2Image forming apparatus and power control methodRICOH CO LTD·Filed 2007·Granted Dec 14, 2010·5 cites·15 claims
- 0374US6829444B2Image forming apparatus, charging unit, and method of controlling of voltage applied to charging unitRICOH KK·Filed 2003·Granted Dec 7, 2004·16 cites·15 claims
- 0466US8081894B2Image forming apparatus and method of controlling heating of fixing unit thereinASHIKAWA YOSHIHISA·Filed 2008·Granted Dec 20, 2011·4 cites·14 claims
- 0562US7659726B2Image forming apparatus with plural AC sourcesRICOH KK·Filed 2007·Granted Feb 9, 2010·6 cites·3 claims
- 0650US7574152B2AC high-voltage device, image forming apparatus, and AC high-voltage output controlling method which restarts the AC high-voltage after an overloadRICOH KK·Filed 2006·Granted Aug 11, 2009·3 cites·5 claims
- 0738US8781358B2Image forming apparatus, image forming method, computer program product, and image forming systemASHIKAWA YOSHIHISA·Filed 2012·Granted Jul 15, 2014·0 cites·11 claims
- 0835US8368251B2Image forming apparatus, image forming method in image forming apparatus, and computer program productRICOH CO LTD·Filed 2010·Granted Feb 5, 2013·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →