Inventor · disambiguated record
Susumu Tatsumi
Also filed as: HOSAKA MASAO · IMAI CHIKARA · KUROISHI SHOJI · OGATA YOSHIHIRO
24 granted patents·616 citations·filing 1976–1985
97Inventor score
Top patents by PatentIndex Score
24 records- 0197US4277163AVariable magnification electrostatic copying machineRICOH KK·Filed 1979·Granted Jul 7, 1981·68 cites·12 claims
- 0297US4226525AElectrostatic copying machineRICOH KK·Filed 1977·Granted Oct 7, 1980·51 cites·8 claims
- 0397US4215930AMethod of maintaining the correct conditions of an electrophotographically duplicated imageRICOH KK·Filed 1978·Granted Aug 5, 1980·52 cites·8 claims
- 0496US4239374AElectrostatographic apparatus comprising automatic document type determination meansRICOH KK·Filed 1978·Granted Dec 16, 1980·57 cites·19 claims
- 0596US4200391AElectrostatographic apparatus comprising document density sensing meansRICOH KK·Filed 1978·Granted Apr 29, 1980·49 cites·4 claims
- 0693US4306804AExposure control and other component control for electrostatic copying machineRICOH KK·Filed 1979·Granted Dec 22, 1981·32 cites·4 claims
- 0792US4277549ACopy image adjustment methodRICOH KK·Filed 1979·Granted Jul 7, 1981·35 cites·10 claims
- 0890US4279498AElectrostatographic copying apparatus with automatic toner density controlRICOH KK·Filed 1979·Granted Jul 21, 1981·28 cites·19 claims
- 0988US4195260AApparatus for sensing deterioration of developing substance including ferromagnetic carrier and non-magnetic toner particlesRICOH KK·Filed 1978·Granted Mar 25, 1980·25 cites·28 claims
- 1084US4032229AConstruction of electrophotographic copying machines with a cleaning unit for photosensitive surfaceRICOH KK·Filed 1976·Granted Jun 28, 1977·24 cites·9 claims
- 1182US4330749AElectrometer apparatusRICOH KK·Filed 1979·Granted May 18, 1982·29 cites·8 claims
- 1280US4210864AApparatus for sensing toner density using a stationary ferromagnetic mass within the toner to increase sensitivityRICOH KK·Filed 1978·Granted Jul 1, 1980·18 cites·7 claims
- 1379US4080059AApparatus for cleaning a photosensitive member of an electrophotographic copying machineRICOH KK·Filed 1976·Granted Mar 21, 1978·19 cites·11 claims
- 1478US4423134ADeveloping unit for electrophotographyRICOH KK·Filed 1978·Granted Dec 27, 1983·17 cites·16 claims
- 1577US4415533AProcess for treating exhaust gas from electrophotographic machine and apparatus thereofRICOH KK·Filed 1981·Granted Nov 15, 1983·33 cites·14 claims
- 1666US4318042AElectrometer probeRICOH KK·Filed 1980·Granted Mar 2, 1982·19 cites·17 claims
- 1766US4213693AElectrostatographic apparatus comprising improved developing bias controlRICOH KK·Filed 1979·Granted Jul 22, 1980·11 cites·9 claims
- 1863US4168329AAuto-bias developing process and an electrophotographic copying machineRICOH KK·Filed 1976·Granted Sep 18, 1979·11 cites·6 claims
- 1956US4614682AThermosensitive image transfer recording mediumRICOH KK·Filed 1985·Granted Sep 30, 1986·14 cites·19 claims
- 2047US4266870AElectrostatographic apparatus comprising developing bias meansRICOH KK·Filed 1979·Granted May 12, 1981·5 cites·6 claims
- 2146US4139299AAuto-bias developing apparatusRICOH KK·Filed 1976·Granted Feb 13, 1979·5 cites·3 claims
- 2241US4176942AElectrophotographic copying apparatusRICOH KK·Filed 1977·Granted Dec 4, 1979·4 cites·10 claims
- 2339US3980049ADeveloping unit for electrophotographyRICOH KK·Filed 1976·Granted Sep 14, 1976·3 cites·9 claims
- 2435US4640129AMethod and apparatus for detecting toner concentration of two-component dry developerMIYAKAWA SEIICHI·Filed 1985·Granted Feb 3, 1987·7 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →