Inventor · disambiguated record
Hiroto Hasegawa
Also filed as: HASEGAWA HIROTO
29 granted patents·961 citations·filing 1989–2023
98Inventor score
Top patents by PatentIndex Score
29 records- 0197US7518089B2Image heating apparatus including flexible metallic sleeve, and heater used for this apparatusCANON KK·Filed 2005·Granted Apr 14, 2009·29 cites·14 claims
- 0297US7251447B2Image heating apparatus and conveying roller for use thereinCANON KK·Filed 2005·Granted Jul 31, 2007·38 cites·15 claims
- 0396US7190914B2Image heating apparatus having heater for externally heating fixing rollerCANON KK·Filed 2005·Granted Mar 13, 2007·25 cites·12 claims
- 0495US5682576AFixing deviceCANON KK·Filed 1995·Granted Oct 28, 1997·81 cites·9 claims
- 0595US5253022AImage forming apparatusCANON KK·Filed 1990·Granted Oct 12, 1993·62 cites·40 claims
- 0695US5202729ADeveloping apparatus having a coated developing rollerCANON KK·Filed 1991·Granted Apr 13, 1993·64 cites·23 claims
- 0795US5179397AImage forming apparatus with constant voltage and constant current controlCANON KK·Filed 1990·Granted Jan 12, 1993·65 cites·128 claims
- 0894US8471178B2Image heating apparatus and heater used for the image heating apparatusTANIGUCHI SATORU·Filed 2009·Granted Jun 25, 2013·24 cites·5 claims
- 0993US5235386ACharging device having charging member, process cartridge and image forming apparatusCANON KK·Filed 1992·Granted Aug 10, 1993·47 cites·20 claims
- 1092US5519472ADeveloping apparatus using elastic bladeCANON KK·Filed 1994·Granted May 21, 1996·46 cites·17 claims
- 1192US5177549AImage forming apparatus supplied with controllable bias voltageCANON KK·Filed 1991·Granted Jan 5, 1993·45 cites·8 claims
- 1291US5177537ADeveloping apparatus with elastic regulating member urged to a developer carrying memberCANON KK·Filed 1990·Granted Jan 5, 1993·42 cites·17 claims
- 1390US6701102B2Method and apparatus for controlling the temperature in a fixing device of an image forming apparatusCANON KK·Filed 2001·Granted Mar 2, 2004·35 cites·20 claims
- 1490US6493521B2Image forming apparatusCANON KK·Filed 2001·Granted Dec 10, 2002·33 cites·20 claims
- 1589US5153654AImage forming apparatus having transfer member for carrying transfer materialCANON KK·Filed 1991·Granted Oct 6, 1992·38 cites·11 claims
- 1688US6075228AImage heating device with bimetal thermoprotectorCANON KK·Filed 1998·Granted Jun 13, 2000·47 cites·9 claims
- 1787US6347211B2Fixing apparatus preventing leakage of electric current from inner surface of fixing rollerCANON KK·Filed 1999·Granted Feb 12, 2002·34 cites·5 claims
- 1887US5286917AApparatus for developing electrostatic latent image and developing roller thereforCANON KK·Filed 1991·Granted Feb 15, 1994·34 cites·38 claims
- 1985US6915099B2Heat fixing apparatusCANON KK·Filed 2003·Granted Jul 5, 2005·24 cites·36 claims
- 2083US6085058AImage forming apparatus having transfer rotary member with surface friction greater than that of image bearing memberCANON KK·Filed 1997·Granted Jul 4, 2000·34 cites·10 claims
- 2183US6005594AFixing apparatus having a fixing roller with a non-adhesive surface layerCANON KK·Filed 1995·Granted Dec 21, 1999·30 cites·30 claims
- 2280US5321482AProcess cartridge and image forming apparatus including a lubricant provided on a cleaning member for cleaning an image bearing memberCANON KK·Filed 1992·Granted Jun 14, 1994·22 cites·33 claims
- 2378US8068778B2Image heating apparatus and endless belt used for image heating apparatusKAINO TOSHIYA·Filed 2009·Granted Nov 29, 2011·6 cites·8 claims
- 2468US6108500AImage forming apparatusCANON KK·Filed 1997·Granted Aug 22, 2000·19 cites·23 claims
- 2568US5991555AImage forming apparatusCANON KK·Filed 1998·Granted Nov 23, 1999·18 cites·38 claims
- 2658US12210301B2Image forming apparatusCANON KK·Filed 2023·Granted Jan 28, 2025·0 cites·13 claims
- 2753US5589924AElectrophotographic image forming systemCANON KK·Filed 1995·Granted Dec 31, 1996·9 cites·22 claims
- 2839US4965747AImage forming apparatusCANON KK·Filed 1989·Granted Oct 23, 1990·6 cites·58 claims
- 2937US5157442AImage forming apparatusCANON KK·Filed 1990·Granted Oct 20, 1992·4 cites·17 claims
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