Inventor · disambiguated record
Hiroo Kobayashi
Also filed as: KOBAYASHI HIROO · TOHYAMA YOSHIKUNI
39 granted patents·2,308 citations·filing 1974–1999
98Inventor score
Top patents by PatentIndex Score
39 records- 0199US5966566ARecycle method for process cartridge and image forming apparatusCANON KK·Filed 1997·Granted Oct 12, 1999·235 cites·33 claims
- 0299US5585889AProcess cartridge and image forming apparatusCANON KK·Filed 1993·Granted Dec 17, 1996·335 cites·52 claims
- 0399US5452056AImage forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridgeCANON KK·Filed 1994·Granted Sep 19, 1995·274 cites·31 claims
- 0499US5331373AImage forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridgeCANON KK·Filed 1993·Granted Jul 19, 1994·291 cites·34 claims
- 0598US5870654AProcess cartridge remanufacturing method and process cartridgeCANON KK·Filed 1997·Granted Feb 9, 1999·163 cites·54 claims
- 0697US4873548AImage forming apparatus comprising a main assembly having a top frame adapted to swing open and closed with respect to a bottom frame and having process cartridge detachably mounted in the main assemblyCANON KK·Filed 1989·Granted Oct 10, 1989·68 cites·18 claims
- 0795US5091754AImage forming apparatus comprising lateral movement meansCANON KK·Filed 1990·Granted Feb 25, 1992·79 cites·20 claims
- 0895US4924267AProcess cartridge and multi-color image forming apparatus using sameCANON KK·Filed 1989·Granted May 8, 1990·64 cites·39 claims
- 0995US4218131ACleaning deviceCANON KK·Filed 1978·Granted Aug 19, 1980·44 cites·21 claims
- 1095US3945726AElectrophotographic fixing deviceCANON KK·Filed 1974·Granted Mar 23, 1976·39 cites·14 claims
- 1194US5028041AImage forming apparatus with sheet feederCANON KK·Filed 1989·Granted Jul 2, 1991·48 cites·21 claims
- 1293US5579085AImage forming apparatus and detachable process cartridge having press-fitted flange to cylinderCANON KK·Filed 1995·Granted Nov 26, 1996·66 cites·56 claims
- 1393US4888620AProcess cartridge and image forming apparatus using the sameCANON KK·Filed 1989·Granted Dec 19, 1989·48 cites·17 claims
- 1493US4168901ADeveloper housing sealing device for electrophotographyCANON KK·Filed 1977·Granted Sep 25, 1979·39 cites·14 claims
- 1592US5258811AImage forming system and process cartridge removably mountable on sameCANON KK·Filed 1992·Granted Nov 2, 1993·47 cites·14 claims
- 1691US5585902AToner cartridge, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 1995·Granted Dec 17, 1996·53 cites·27 claims
- 1790US5446525AImage bearing member mounting methodCANON KK·Filed 1994·Granted Aug 29, 1995·39 cites·23 claims
- 1888US5225881AImage recording apparatus with refeeding pathCANON KK·Filed 1992·Granted Jul 6, 1993·37 cites·30 claims
- 1988US4323306ADeveloper cleaning device for electrophotographyCANON KK·Filed 1979·Granted Apr 6, 1982·30 cites·27 claims
- 2086US5260759AImage forming system having sheet hold-down deviceCANON KK·Filed 1993·Granted Nov 9, 1993·33 cites·8 claims
- 2186US5115281AImage forming apparatus with plural forming unitsCANON KK·Filed 1990·Granted May 19, 1992·36 cites·13 claims
- 2284US4405881AColor cathode ray tube including Nd2 O3 and Cr2 O3 in face glassMITSUBISHI ELECTRIC CORP·Filed 1981·Granted Sep 20, 1983·40 cites·7 claims
- 2379US4000942ATransfer medium separating deviceCANON KK·Filed 1975·Granted Jan 4, 1977·32 cites·5 claims
- 2477US5752131ADeveloping apparatus with a removable sealing film and process cartridge and image forming apparatus including such a developing apparatusCANON KK·Filed 1994·Granted May 12, 1998·23 cites·156 claims
- 2574US4673956AReduced vibration in a two part assembly for an image recording apparatusCANON KK·Filed 1986·Granted Jun 16, 1987·18 cites·9 claims
- 2671US6141513AToner cartridge, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 1997·Granted Oct 31, 2000·41 cites·42 claims
- 2770US4454446ACathode ray tube for a light sourceMITSUBISHI ELECTRIC CORP·Filed 1981·Granted Jun 12, 1984·13 cites·2 claims
- 2869US5384619AImage forming apparatus having re-feeding unitCANON KK·Filed 1994·Granted Jan 24, 1995·19 cites·15 claims
- 2963US4893054AShadow mask type color cathode ray tubeMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jan 9, 1990·12 cites·4 claims
- 3051US5189545AOptical deflector and display unit using the sameMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Feb 23, 1993·12 cites·14 claims
- 3150US4336480ACathode ray tubeMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Jun 22, 1982·6 cites·9 claims
- 3238US6328391B1Drum brake deviceAKEBONO BRAKE IND·Filed 1999·Granted Dec 11, 2001·6 cites·6 claims
- 3338US5602443ACathode-ray tubeMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Feb 11, 1997·4 cites·10 claims
- 3436US6119833ADrum brake device having leading/trailing mode and duo servo modeAKEBONO BRAKE IND·Filed 1999·Granted Sep 19, 2000·6 cites·2 claims
- 3536US4326150ACathode ray tube device for display systemMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Apr 20, 1982·5 cites·12 claims
- 3634US4623821AColor image display deviceMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Nov 18, 1986·1 cites·5 claims
- 3733US4625143AMulticolor complex type cathode-ray tube for use as light sourceMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Nov 25, 1986·1 cites·16 claims
- 3830US4996459ACathode ray tube for color displayMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Feb 26, 1991·0 cites·8 claims
- 3926US5725977AMethod of forming fluorescent screen for color cathode-ray tube and exposure system for forming sameMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Mar 10, 1998·1 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →