Inventor · disambiguated record
Shuichi Tsushima
Also filed as: TSUSHIMA SHUICHI
6 granted patents·99 citations·filing 1980–1987
84Inventor score
Files withRICOH KK6
Top patents by PatentIndex Score
6 records- 0190US4351604AMulti-color electrostatic copying apparatusRICOH KK·Filed 1980·Granted Sep 28, 1982·40 cites·25 claims
- 0268US4389113AImproved developing device for two-color electrophotographic copying apparatusRICOH KK·Filed 1981·Granted Jun 21, 1983·15 cites·13 claims
- 0367US4413899ACopying method and apparatusRICOH KK·Filed 1981·Granted Nov 8, 1983·14 cites·11 claims
- 0460US4443095AImage transfer and sheet separation apparatus for electrophotographic systemRICOH KK·Filed 1982·Granted Apr 17, 1984·11 cites·26 claims
- 0552US4430402ADichromatic electrophotography using two developer compositions applied sequentiallyRICOH KK·Filed 1982·Granted Feb 7, 1984·9 cites·1 claims
- 0646US4845375AContact photoelectric conversion apparatus having plurality of protecting layersRICOH KK·Filed 1987·Granted Jul 4, 1989·10 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →