Assignee
RICOH CORP LTD
US·2 granted patents·1 pending application·11 citations·filing 1987–2006
Top patents by PatentIndex Score
3 records- 0143US4803503AThermally activated electrostatic charging method and systemRICOH CORP LTD·Filed 1987·Granted Feb 7, 1989·6 cites·18 claims
- 0240US2008144144A1Confirming a state of a deviceRICOH CORP LTD·Filed 2006·Application pending·0 cites
- 0335US4833053APhotoconductive devices containing squarilium dye compositionsRICOH CORP LTD·Filed 1988·Granted May 23, 1989·5 cites·8 claims
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