Inventor · disambiguated record
Junji Kurokawa
Also filed as: KUROKAWA JUNJI
15 granted patents·239 citations·filing 1975–2005
94Inventor score
Top patents by PatentIndex Score
15 records- 0188US5499078ACharge roller and image forming apparatus using the sameRICOH KK·Filed 1994·Granted Mar 12, 1996·35 cites·24 claims
- 0286US4578331AColor image forming methodRICOH KK·Filed 1984·Granted Mar 25, 1986·36 cites·8 claims
- 0385US5619311ARoller charging apparatus and image forming apparatus using the sameRICOH KK·Filed 1994·Granted Apr 8, 1997·35 cites·33 claims
- 0479US5786091ACharge roller for an image forming apparatusRICOH KK·Filed 1995·Granted Jul 28, 1998·32 cites·6 claims
- 0574US7943241B2Composite ceramic bodyKYOCERA CORP·Filed 2005·Granted May 17, 2011·4 cites·2 claims
- 0672US5479243AImage forming apparatus and charging device thereofRICOH KK·Filed 1994·Granted Dec 26, 1995·24 cites·14 claims
- 0772US3992089AReader-printer apparatus with multiple supply rolls and charging devicesRICOH KK·Filed 1975·Granted Nov 16, 1976·15 cites·17 claims
- 0864US5497219ACharge rollers having improved layer structure and/or surface characteristics in an image forming apparatusRICOH KK·Filed 1994·Granted Mar 5, 1996·16 cites·26 claims
- 0956US4278343AInversion developing method for electrophotography and relevant apparatusesRICOH KK·Filed 1979·Granted Jul 14, 1981·8 cites·3 claims
- 1050US5689770AImage forming apparatus which maintains a temperature of a charge rollerRICOH KK·Filed 1995·Granted Nov 18, 1997·7 cites·15 claims
- 1146US4965871AContinuous plural page copying method for a copierRICOH KK·Filed 1988·Granted Oct 23, 1990·7 cites·4 claims
- 1244US5792533AElectrostatic charging rollerRICOH KK·Filed 1996·Granted Aug 11, 1998·13 cites·6 claims
- 1336US5881344AImage forming apparatus and charging device thereofRICOH KK·Filed 1997·Granted Mar 9, 1999·3 cites·19 claims
- 1436US5155533ABias application control device for image forming equipmentRICOH KK·Filed 1990·Granted Oct 13, 1992·4 cites·1 claims
- 1529US5602627AElectrifying roller, roller electrifying apparatus using the same, and image forming apparatus using the sameRICOH KK·Filed 1995·Granted Feb 11, 1997·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →