Inventor · disambiguated record
Masaharu Ohkubo
Also filed as: OHKUBO MASAHARU
43 granted patents·1,081 citations·filing 1981–1999
98Inventor score
Files withCANON KK43
Top patents by PatentIndex Score
43 records- 0198US5430526AImage forming apparatus having weighting material in image bearing member and process cartridge usable with sameCANON KK·Filed 1994·Granted Jul 4, 1995·131 cites·47 claims
- 0297US4719489ARecording apparatus having material feed mode dependent fixing controlCANON KK·Filed 1987·Granted Jan 12, 1988·74 cites·16 claims
- 0395US5682576AFixing deviceCANON KK·Filed 1995·Granted Oct 28, 1997·81 cites·9 claims
- 0493US5353104ADefining member for defining thickness of one-component developer and developing device equipped with itCANON KK·Filed 1993·Granted Oct 4, 1994·51 cites·27 claims
- 0592US5519472ADeveloping apparatus using elastic bladeCANON KK·Filed 1994·Granted May 21, 1996·46 cites·17 claims
- 0690US5534344ACharging member having a loosely supported charger portionCANON KK·Filed 1993·Granted Jul 9, 1996·40 cites·32 claims
- 0784US4829323AColor image recording apparatusCANON KK·Filed 1987·Granted May 9, 1989·35 cites·22 claims
- 0883US5543899ACharging member having a foamed layer of a material with specified density and pore properties, charging device, process cartridge and image forming apparatus featuring the charging memberCANON KK·Filed 1994·Granted Aug 6, 1996·27 cites·13 claims
- 0982US4369729AImage recording apparatusCANON KK·Filed 1981·Granted Jan 25, 1983·23 cites·20 claims
- 1081US5596388AProcess cartridge with an information feature and image forming apparatus for use with the sameCANON KK·Filed 1995·Granted Jan 21, 1997·30 cites·34 claims
- 1180US6002106AFixing deviceCANON KK·Filed 1997·Granted Dec 14, 1999·29 cites·8 claims
- 1280US4707748AImage recording apparatusCANON KK·Filed 1986·Granted Nov 17, 1987·22 cites·14 claims
- 1379US5124802AElectrostatic lasar printer with a short side length of a modulation area formed by pulse width modulation set relative to a detected toner particle sizeCANON KK·Filed 1990·Granted Jun 23, 1992·47 cites·20 claims
- 1479US4725854ALaser emitting apparatus and laser beam printer using sameCANON KK·Filed 1986·Granted Feb 16, 1988·24 cites·9 claims
- 1577US4855765AColor image processing method and apparatusCANON KK·Filed 1988·Granted Aug 8, 1989·26 cites·15 claims
- 1674US4937600AImage forming apparatusCANON KK·Filed 1988·Granted Jun 26, 1990·17 cites·41 claims
- 1773US4853768AColor image processing apparatus with linear masking circuit having coefficients which vary in accordance with the levels of color component signalsCANON KK·Filed 1986·Granted Aug 1, 1989·25 cites·13 claims
- 1873US4626096AImage forming apparatus for forming a visual image in accordance with image signalsCANON KK·Filed 1985·Granted Dec 2, 1986·26 cites·28 claims
- 1972US6108105ADot image output apparatusCANON KK·Filed 1995·Granted Aug 22, 2000·38 cites·36 claims
- 2072US5541711ACharging member having a cavity, charging device, process unit, and image forming apparatus having such a charging memberCANON KK·Filed 1992·Granted Jul 30, 1996·18 cites·28 claims
- 2171US6052549ACharging roller, and process cartridge and image-forming apparatus employing the rollerCANON KK·Filed 1995·Granted Apr 18, 2000·20 cites·15 claims
- 2268US5140349ARecording apparatusCANON KK·Filed 1991·Granted Aug 18, 1992·27 cites·83 claims
- 2367US5475472AImage process unit having charging member impedance correction featureCANON KK·Filed 1994·Granted Dec 12, 1995·15 cites·23 claims
- 2466US4498755ADeveloping device for use in electrophotographyCANON KK·Filed 1981·Granted Feb 12, 1985·13 cites·5 claims
- 2564US6134025ADot image data output apparatusCANON KK·Filed 1995·Granted Oct 17, 2000·25 cites·10 claims
- 2663US5072304AImage reading and recording apparatus with correct image mode and mirror image modeCANON KK·Filed 1991·Granted Dec 10, 1991·17 cites·20 claims
- 2763US4851923ARecording apparatus for recording a reversed image of an originalCANON KK·Filed 1987·Granted Jul 25, 1989·14 cites·10 claims
- 2861US5003326AColor image processing method and apparatusCANON KK·Filed 1989·Granted Mar 26, 1991·17 cites·22 claims
- 2960US5565995ASystem for correcting a pulse-width-modulated signal in a recording apparatusCANON KK·Filed 1995·Granted Oct 15, 1996·21 cites·24 claims
- 3058US5463473ASiphen for correcting a pulse-width modulated signal in a recording apparatusCANON KK·Filed 1993·Granted Oct 31, 1995·14 cites·17 claims
- 3157US5659869AImage fixing apparatus having pressure roller with fluorine surface active agentCANON KK·Filed 1994·Granted Aug 19, 1997·11 cites·16 claims
- 3255US6427054B1Image forming apparatus indicating the residue of toner and the deficiency of tonerCANON KK·Filed 1998·Granted Jul 30, 2002·11 cites·10 claims
- 3355US5488487AImage forming apparatus, and modulating method thereinCANON KK·Filed 1993·Granted Jan 30, 1996·12 cites·14 claims
- 3450US5091734AColor image recording utilizing color correction in accordance with a predetermined order of recording of multiple color agentsCANON KK·Filed 1991·Granted Feb 25, 1992·12 cites·18 claims
- 3550US4468110AMethod and apparatus for electrophotographyCANON KK·Filed 1982·Granted Aug 28, 1984·7 cites·9 claims
- 3646US4563694AImage information recording apparatusCANON KK·Filed 1984·Granted Jan 7, 1986·6 cites·24 claims
- 3745US5508811AImage reading and recording apparatus with correct image mode and mirror image modeCANON KK·Filed 1995·Granted Apr 16, 1996·8 cites·36 claims
- 3844US6259885B1Image forming apparatus having transportation guide with fluorinated resinCANON KK·Filed 1998·Granted Jul 10, 2001·6 cites·9 claims
- 3938US4682876AInformation recording apparatusCANON KK·Filed 1986·Granted Jul 28, 1987·6 cites·5 claims
- 4034US6477319B1Image recording apparatus which sends charasteristic/correction signals whenever new look-up table are selected or a pre-selected number of pages have been printedCANON KK·Filed 1999·Granted Nov 5, 2002·2 cites·8 claims
- 4134US5982983AImage recording system accommodating various output devicesCANON KK·Filed 1995·Granted Nov 9, 1999·2 cites·20 claims
- 4234US5859948AImages processing apparatus for controlling binarized multi-value image data to convert pulse widths differently in at least two modesCANON KK·Filed 1995·Granted Jan 12, 1999·2 cites·12 claims
- 4332US5754188AData processing apparatusCANON KK·Filed 1993·Granted May 19, 1998·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →