Inventor · disambiguated record
Toyoo Okamoto
Also filed as: MITA SHIGERU · MIYAKAWA SEIICHI · OKAMOTO TOYOO · TANI TATSUO
17 granted patents·192 citations·filing 1974–2001
94Inventor score
Top patents by PatentIndex Score
17 records- 0183US4208122AReproduction apparatus comprising sorting deviceRICOH KK·Filed 1978·Granted Jun 17, 1980·22 cites·17 claims
- 0282US4166702ADevice for detecting a toner concentration in a developing solutionRICOH KK·Filed 1978·Granted Sep 4, 1979·20 cites·16 claims
- 0377US3941469ADry type developing device for a copying apparatus or like apparatusRICOH KK·Filed 1974·Granted Mar 2, 1976·15 cites·6 claims
- 0476US4056315ASqueeze roller retraction assemblyRICOH KK·Filed 1976·Granted Nov 1, 1977·17 cites·8 claims
- 0572US6644187B2Printer and sheet conveying device thereforTOHOKU RIKO KK·Filed 2001·Granted Nov 11, 2003·7 cites·87 claims
- 0669US4203144ACorona charger for image transferRICOH KK·Filed 1978·Granted May 13, 1980·12 cites·11 claims
- 0763US4168329AAuto-bias developing process and an electrophotographic copying machineRICOH KK·Filed 1976·Granted Sep 18, 1979·11 cites·6 claims
- 0863US4165172ADrum cleaning system for electrophotographic apparatusRICOH KK·Filed 1976·Granted Aug 21, 1979·10 cites·14 claims
- 0961US4400081AApparatus for cleaning photosensitive member of electrostatic copying machineRICOH KK·Filed 1981·Granted Aug 23, 1983·11 cites·18 claims
- 1060US4006709ADeveloping unit for electrophotographyRICOH KK·Filed 1975·Granted Feb 8, 1977·9 cites·5 claims
- 1158US4247195ABias device for a copying machineRICOH KK·Filed 1979·Granted Jan 27, 1981·8 cites·7 claims
- 1256US5512927AImage forming apparatus having a photosensitive drum rotatable at different speedsRICOH KK·Filed 1993·Granted Apr 30, 1996·11 cites·6 claims
- 1356US4011353AApparatus for forming a uniform liquid film on a rollerRICOH KK·Filed 1974·Granted Mar 8, 1977·7 cites·10 claims
- 1455US4159172ATransfer sheet separator for use with electrophotographic copying machineRICOH KK·Filed 1977·Granted Jun 26, 1979·13 cites·7 claims
- 1552US4324485AElectrostatic copying apparatusRICOH KK·Filed 1979·Granted Apr 13, 1982·7 cites·7 claims
- 1652US4149485AApparatus for forming a uniform liquid film on a rollerRICOH KK·Filed 1976·Granted Apr 17, 1979·7 cites·7 claims
- 1746US4095884AExposure controlling apparatus for electrophotographic copying machineRICOH KK·Filed 1976·Granted Jun 20, 1978·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →