Inventor · disambiguated record
Noriyuki Usui
Also filed as: USUI NORIYUKI
9 granted patents·337 citations·filing 1989–2000
91Inventor score
Technology areasG03G
Files withRICOH KK9
Top patents by PatentIndex Score
9 records- 0197US6266501B1Image-forming apparatus having a seal for a developer and a method for detecting a removal of the sealRICOH KK·Filed 2000·Granted Jul 24, 2001·90 cites·44 claims
- 0293US6148161AImage forming apparatus with improved toner density controlRICOH KK·Filed 1999·Granted Nov 14, 2000·64 cites·25 claims
- 0393US6144822AImage forming apparatus having detachable transfer roller and discharge deviceRICOH KK·Filed 1999·Granted Nov 7, 2000·63 cites·22 claims
- 0486US5864733ADeveloping device for image forming apparatusRICOH KK·Filed 1996·Granted Jan 26, 1999·44 cites·10 claims
- 0582US5083169ADevice for removing deposits from a photoconductive element of an image recorder which is movable between a cleaning and non-cleaning positionRICOH KK·Filed 1989·Granted Jan 21, 1992·26 cites·22 claims
- 0676US5175584ACleaning control device for image forming equipmentRICOH KK·Filed 1990·Granted Dec 29, 1992·23 cites·7 claims
- 0762US4945389AMethod of cleaning a photoconductive element of an image recorderRICOH KK·Filed 1989·Granted Jul 31, 1990·13 cites·6 claims
- 0852US6101361AImage forming apparatus with a device and a method to increase contact area between a transfer sheet and an image carrierRICOH KK·Filed 1998·Granted Aug 8, 2000·9 cites·4 claims
- 0941US5884134AImage forming apparatus with a device to increase contact area between a transfer sheet and an image carrierRICOH KK·Filed 1997·Granted Mar 16, 1999·5 cites·30 claims
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