Inventor · disambiguated record
Teruyuki Ohnuma
Also filed as: MIYAKAWA SEIICHI · OHNUMA TERUYUKI · SUZUKI KOHJI
13 granted patents·842 citations·filing 1976–1991
94Inventor score
Files withRICOH KK13
Top patents by PatentIndex Score
13 records- 0197US5077142AElectroluminescent devicesRICOH KK·Filed 1990·Granted Dec 31, 1991·384 cites·5 claims
- 0297US4194830ADevelopment apparatusRICOH KK·Filed 1978·Granted Mar 25, 1980·54 cites·9 claims
- 0394US4286543AApparatus for developing electrostatic imageRICOH KK·Filed 1979·Granted Sep 1, 1981·43 cites·13 claims
- 0493US5153073AElectroluminescent deviceRICOH KK·Filed 1991·Granted Oct 6, 1992·80 cites·8 claims
- 0593US4382420ADevelopment apparatusRICOH KK·Filed 1981·Granted May 10, 1983·42 cites·25 claims
- 0688US5118986AElectroluminescent deviceRICOH KK·Filed 1990·Granted Jun 2, 1992·36 cites·15 claims
- 0788US4201465ADrum cleaning process and apparatus for electrophotographyRICOH KK·Filed 1978·Granted May 6, 1980·26 cites·21 claims
- 0887US4165393AMagnetic brush developing process for electrostatic imagesRICOH KK·Filed 1976·Granted Aug 21, 1979·26 cites·6 claims
- 0984US4193679AElectrophotographic apparatus comprising improved imaging systemRICOH KK·Filed 1977·Granted Mar 18, 1980·22 cites·5 claims
- 1081US4119060AToner charging apparatusRICOH KK·Filed 1977·Granted Oct 10, 1978·20 cites·8 claims
- 1179US4707570AManual information input deviceRICOH KK·Filed 1986·Granted Nov 17, 1987·61 cites·20 claims
- 1276US4350749AReverse development methodRICOH KK·Filed 1979·Granted Sep 21, 1982·16 cites·5 claims
- 1370US5093210AElectroluminescent deviceRICOH KK·Filed 1990·Granted Mar 3, 1992·32 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →