Assignee
RICOH SYSTEMS INC
US·9 granted patents·98 citations·filing 1982–1986
Top patents by PatentIndex Score
9 records- 0179US4627702AWide belt tracking method and apparatusRICOH SYSTEMS INC·Filed 1985·Granted Dec 9, 1986·23 cites·13 claims
- 0276US4710442AGradient layer panchromatic photoreceptorRICOH SYSTEMS INC·Filed 1986·Granted Dec 1, 1987·23 cites·6 claims
- 0357US4619450ACopying apparatus with automatic bottom feederRICOH SYSTEMS INC·Filed 1985·Granted Oct 28, 1986·11 cites·21 claims
- 0454US4580143AViscosity control of ink-jet inksRICOH SYSTEMS INC·Filed 1984·Granted Apr 1, 1986·10 cites·6 claims
- 0549US4500621ASensitive electrophotographic plates containing squaric acid methine dyes suspended in a binderRICOH SYSTEMS INC·Filed 1983·Granted Feb 19, 1985·9 cites·8 claims
- 0649US4481270APhotoreceptor containing squaric acid methine dyesRICOH SYSTEMS INC·Filed 1983·Granted Nov 6, 1984·9 cites·11 claims
- 0747US4451138AElectrophotographic copying apparatus having an automatic feed arrangement and an end-of-feed sensing assemblyRICOH SYSTEMS INC·Filed 1982·Granted May 29, 1984·8 cites·8 claims
- 0835US4595933AInk liquid supply apparatusRICOH SYSTEMS INC·Filed 1985·Granted Jun 17, 1986·2 cites·9 claims
- 0934US4572655AElectrophotographic copying apparatus and method of use including electrostatic toner recycling procedureRICOH SYSTEMS INC·Filed 1983·Granted Feb 25, 1986·3 cites·16 claims
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