Inventor · disambiguated record
Hiroyuki Ohkaji
Also filed as: OHKAJI HIROYUKI
8 granted patents·393 citations·filing 1989–2003
91Inventor score
Files withRICOH KK8
Top patents by PatentIndex Score
8 records- 0196US6085062AElectrophotographic image forming apparatusRICOH KK·Filed 1999·Granted Jul 4, 2000·100 cites·6 claims
- 0295US6628903B1Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paperRICOH KK·Filed 2000·Granted Sep 30, 2003·52 cites·3 claims
- 0395US6144811AImage forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paperRICOH KK·Filed 1999·Granted Nov 7, 2000·70 cites·17 claims
- 0491US6160969AImage forming apparatus with a voltage applying unit for image transferRICOH KK·Filed 1998·Granted Dec 12, 2000·57 cites·27 claims
- 0590US4984024AImage transfer unit for image recording apparatusRICOH KK·Filed 1989·Granted Jan 8, 1991·39 cites·12 claims
- 0685US6898383B2Image forming apparatusRICOH KK·Filed 2003·Granted May 24, 2005·19 cites·20 claims
- 0782US5189479AImage transferring device for a color image recorderRICOH KK·Filed 1991·Granted Feb 23, 1993·30 cites·7 claims
- 0862US5719684AImage forming apparatus having an endless conveying and transferring belt with an interrupt controlRICOH KK·Filed 1996·Granted Feb 17, 1998·26 cites·26 claims
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