Inventor · disambiguated record
Akira Hayakawa
Also filed as: HAYAKAWA AKIRA · SAKAMOTO MASAKAZU
44 granted patents·2 pending applications·1,193 citations·filing 1991–2016
98Inventor score
Top patents by PatentIndex Score
46 records- 0195US5856048AInformation-recorded media and methods for reading the informationDAINIPPON PRINTING CO LTD·Filed 1993·Granted Jan 5, 1999·304 cites·22 claims
- 0294US6377777B1Fluorine-containing resin-coated pressure roller and heat-fixing deviceCANON KK·Filed 2000·Granted Apr 23, 2002·56 cites·9 claims
- 0393US6175699B1Image fixing device with heater controlCANON KK·Filed 1999·Granted Jan 16, 2001·63 cites·18 claims
- 0493US5444521AImage fixing device capable of controlling heating overshootCANON KK·Filed 1992·Granted Aug 22, 1995·49 cites·11 claims
- 0592US5534987AFixing apparatus with variable fixing temperatureCANON KK·Filed 1995·Granted Jul 9, 1996·62 cites·9 claims
- 0692US5420679AElastic roller and fixing apparatus using sameCANON KK·Filed 1993·Granted May 30, 1995·46 cites·47 claims
- 0792US5365314AImage heating apparatus capable of changing duty ratioCANON KK·Filed 1993·Granted Nov 15, 1994·44 cites·16 claims
- 0891US5552874AImage fixing apparatusCANON KK·Filed 1994·Granted Sep 3, 1996·40 cites·21 claims
- 0990US6094559AFixing apparatus having cleaning mode and storage medium storing program thereforCANON KK·Filed 1998·Granted Jul 25, 2000·52 cites·69 claims
- 1090US5253024AFixing apparatus with rectifier elementCANON KK·Filed 1991·Granted Oct 12, 1993·41 cites·24 claims
- 1189US5852763AImage heating apparatusCANON KK·Filed 1997·Granted Dec 22, 1998·46 cites·35 claims
- 1289US5669039AImage heating apparatus capable of varying feeding intervals between recording materialsCANON KK·Filed 1996·Granted Sep 16, 1997·46 cites·7 claims
- 1389US5621510AImage heating apparatus with driving roller having low thermal expansion coefficient outer layerCANON KK·Filed 1994·Granted Apr 15, 1997·36 cites·24 claims
- 1488US5801360AImage fixing apparatusCANON KK·Filed 1995·Granted Sep 1, 1998·45 cites·6 claims
- 1588US5592276AImage fixing device with heater responsive to thermal stressCANON KK·Filed 1994·Granted Jan 7, 1997·35 cites·30 claims
- 1687US9742289B2Integrated circuit and switching power-supply deviceSANKEN ELECTRIC CO LTD·Filed 2015·Granted Aug 22, 2017·6 cites·7 claims
- 1787US6583389B2Image heating apparatus, heater for heating image and manufacturing method thereofCANON KK·Filed 2001·Granted Jun 24, 2003·42 cites·19 claims
- 1884US5924372AEmbroidery data processing device for sewing machine including means for limiting repeated use of embroidery dataBROTHER IND LTD·Filed 1998·Granted Jul 20, 1999·21 cites·22 claims
- 1983US7227482B2Complex band-pass filter for use in digital radio receiver and complex band-pass Δ-Σ AD modulator using the sameSEMICONDUCTOR TECH ACAD RES CT·Filed 2006·Granted Jun 5, 2007·17 cites·20 claims
- 2082US9590615B1Integrated circuit and switching power-supply device performing output control through switching operationSANKEN ELECTRIC CO LTD·Filed 2015·Granted Mar 7, 2017·5 cites·4 claims
- 2179US9614448B2Switching power-supply deviceSANKEN ELECTRIC CO LTD·Filed 2015·Granted Apr 4, 2017·4 cites·5 claims
- 2279US6123040ASewing machine capable of changing a needle positionBROTHER IND LTD·Filed 1999·Granted Sep 26, 2000·14 cites·17 claims
- 2378US9455639B2Switched-mode power supply deviceSANKEN ELECTRIC CO LTD·Filed 2015·Granted Sep 27, 2016·3 cites·9 claims
- 2477US7515841B2Image forming apparatus for preventing defective fixing of a toner imageCANON KK·Filed 2006·Granted Apr 7, 2009·5 cites·7 claims
- 2576US7039472B2Schedule execution managing apparatus and methodFUJITSU LTD·Filed 2001·Granted May 2, 2006·15 cites·14 claims
- 2672US7012496B2Noise elimination device and method for installing the sameMASPROH DENKOH CO LTD·Filed 2001·Granted Mar 14, 2006·18 cites·91 claims
- 2768US7257342B2Image forming apparatusCANON KK·Filed 2006·Granted Aug 14, 2007·2 cites·3 claims
- 2862US6809609B1Device for preventing mixing of extrinsic noise and protectorMASPRO DENKOH CO LTD·Filed 2000·Granted Oct 26, 2004·10 cites·11 claims
- 2961US5986835AControl apparatus and method for conveyance control of medium in library apparatus and data transfer control with upper apparatusFUJITSU LTD·Filed 1997·Granted Nov 16, 1999·36 cites·12 claims
- 3060US10598561B2Rotational solidTOYOTA JIDOSHOKKI KK·Filed 2016·Granted Mar 24, 2020·1 cites·5 claims
- 3156US5280155AImage heater having film guide with projectionsCANON KABUSHIHI KAISHA·Filed 1992·Granted Jan 18, 1994·11 cites·8 claims
- 3255US9104317B2Computer system and method of controlling I/O with respect to storage apparatusHAYAKAWA AKIRA·Filed 2012·Granted Aug 11, 2015·1 cites·13 claims
- 3355US7953359B2Apparatus for heating an image formed on a recording materialCANON KK·Filed 2005·Granted May 31, 2011·1 cites·4 claims
- 3449US9141042B2Image forming apparatus having misregistration controlCANON KK·Filed 2013·Granted Sep 22, 2015·0 cites·13 claims
- 3549US6947676B2Image forming apparatus and controlling method therefor determining state use of cartridgeCANON KK·Filed 2002·Granted Sep 20, 2005·4 cites·6 claims
- 3648US9525353B2Switching power-supply device for performing control of output voltage switching operationSANKEN ELECTRIC CO LTD·Filed 2014·Granted Dec 20, 2016·0 cites·5 claims
- 3748US7766659B2Series unit with moveable terminal(s) for connection of coaxial cablesMASPRO DENKO KK·Filed 2007·Granted Aug 3, 2010·5 cites·23 claims
- 3847US5924373AElectronic sewing machine control having numeric keys on displayBROTHER IND LTD·Filed 1998·Granted Jul 20, 1999·4 cites·20 claims
- 3946US6227128B1Sewing machine having a displayBROTHER IND LTD·Filed 2000·Granted May 8, 2001·1 cites·15 claims
- 4045US9564813B2Switching power-supply deviceSANKEN ELECTRIC CO LTD·Filed 2014·Granted Feb 7, 2017·0 cites·9 claims
- 4145US9490715B2Switched-mode power supply deviceSANKEN ELECTRIC CO LTD·Filed 2015·Granted Nov 8, 2016·0 cites·10 claims
- 4241US2003023785A1Data processing program, computer readable recording medium recorded with data processing program and data processing apparatusFUJITSU LTD·Filed 2001·Application pending·0 cites
- 4339US9748850B2Switching power-supply with switching frequency correctionSANKEN ELECTRIC CO LTD·Filed 2015·Granted Aug 29, 2017·0 cites·2 claims
- 4434US6839723B2Information management systemFUJITSU LTD·Filed 2001·Granted Jan 4, 2005·2 cites·31 claims
- 4534US2016276923A1Snubber circuitSANKEN ELECTRIC CO LTD·Filed 2015·Application pending·0 cites
- 4632US9559600B2Switched-mode power supply deviceSANKEN ELECTRIC CO LTD·Filed 2015·Granted Jan 31, 2017·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →