Assignee
KOISHI ISAO
JP·4 granted patents·82 citations·filing 2010–2011
Technology mixG03G4
Top patents by PatentIndex Score
4 records- 0198US8139979B2Process cartridge and electrophotographic image forming apparatusKOISHI ISAO·Filed 2010·Granted Mar 20, 2012·44 cites·10 claims
- 0297US8526841B2Process cartridge and electrophotographic image forming apparatusKOISHI ISAO·Filed 2010·Granted Sep 3, 2013·32 cites·13 claims
- 0390US8781355B2Electrical contact, electrophotographic photosensitive drum, and process cartridgeKOISHI ISAO·Filed 2011·Granted Jul 15, 2014·6 cites·36 claims
- 0444US8543035B2Cleaning device, cartridge and image forming apparatusKOISHI ISAO·Filed 2011·Granted Sep 24, 2013·0 cites·22 claims
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