Inventor · disambiguated record
Masahide Hirai
Also filed as: HIRAI MASAHIDE · KAZIGASE MASAHIRO
33 granted patents·4 pending applications·288 citations·filing 1974–2025
97Inventor score
Top patents by PatentIndex Score
37 records- 0197US9568867B2Image forming apparatus and image forming methodCANON KK·Filed 2016·Granted Feb 14, 2017·13 cites·4 claims
- 0297US9377727B2Image forming apparatus and image forming methodCANON KK·Filed 2015·Granted Jun 28, 2016·17 cites·1 claims
- 0396US9091974B2Image forming apparatus and image forming methodYOSHIOKA MAHITO·Filed 2012·Granted Jul 28, 2015·22 cites·4 claims
- 0495US9989900B2Image forming apparatus and image forming methodCANON KK·Filed 2016·Granted Jun 5, 2018·7 cites·6 claims
- 0593US6175699B1Image fixing device with heater controlCANON KK·Filed 1999·Granted Jan 16, 2001·63 cites·18 claims
- 0691US9442440B2Fixing device and image forming apparatusCANON KK·Filed 2015·Granted Sep 13, 2016·5 cites·10 claims
- 0786US9405249B2Heat-fixing deviceCANON KK·Filed 2015·Granted Aug 2, 2016·6 cites·9 claims
- 0884US4250031APhenolic chelate resin and method of adsorption treatmentUNITIKA LTD·Filed 1979·Granted Feb 10, 1981·22 cites·4 claims
- 0982US8185003B2Image forming apparatus and control method thereof featuring image member surface data detectionHIRAI MASAHIDE·Filed 2009·Granted May 22, 2012·6 cites·19 claims
- 1077US8103182B2Image forming apparatus taht includes a transfer member that can be separated from an inner circumferential surface of a transfer belt when belt is rotatingSEKI HIROYUKI·Filed 2009·Granted Jan 24, 2012·4 cites·13 claims
- 1177US2025181019A1Image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1276US12248269B2Image forming apparatus configured to determine whether or not a roller member has been replacedCANON KK·Filed 2023·Granted Mar 11, 2025·0 cites·4 claims
- 1375US8594525B2Image forming apparatusHIRAI MASAHIDE·Filed 2011·Granted Nov 26, 2013·2 cites·16 claims
- 1474US6518546B2Heater having electronically conductive board and image heating apparatus using heaterCANON KK·Filed 2001·Granted Feb 11, 2003·18 cites·11 claims
- 1574US2025291303A1Image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1673US8565627B2Image forming apparatus and control method thereofKINUKAWA TATSUYA·Filed 2009·Granted Oct 22, 2013·4 cites·25 claims
- 1771US8380097B2Image forming apparatus that includes a transfer member that can be separated from an inner circumferential surface of a transfer belt when belt is rotatingCANON KK·Filed 2011·Granted Feb 19, 2013·1 cites·14 claims
- 1871US7054573B2Heating apparatusCANON KK·Filed 2004·Granted May 30, 2006·12 cites·20 claims
- 1970US10185254B2Image forming apparatus that obtains lifetime of secondary transfer memberCANON KK·Filed 2017·Granted Jan 22, 2019·1 cites·15 claims
- 2069US8442409B2Image forming apparatus including a rotation member circumference calculator and control method thereofHIRAI MASAHIDE·Filed 2012·Granted May 14, 2013·1 cites·12 claims
- 2168US2018267442A1Image forming apparatus and image forming methodCANON KK·Filed 2018·Application pending·0 cites
- 2265US3936399AProcess of producing phenolic chelate resin using iminodiacetic acidUNITIKA LTD·Filed 1974·Granted Feb 3, 1976·16 cites·13 claims
- 2363US7546075B2Image forming apparatus featuring a multilayer member with a roughened layer surface to irregularly reflect incident light and method for making the multilayer memberCANON KK·Filed 2005·Granted Jun 9, 2009·2 cites·20 claims
- 2460US7050746B2Image forming apparatus which controls transferring timing to the paper according to a change of process speedCANON KK·Filed 2004·Granted May 23, 2006·7 cites·12 claims
- 2556US4028284APhenolic chelate resinUNITIKA LTD·Filed 1975·Granted Jun 7, 1977·10 cites·7 claims
- 2656US2025172897A1Image forming apparatus and image forming systemCANON KK·Filed 2024·Application pending·0 cites
- 2755US11902475B2Diagnostic system for diagnosing image forming apparatus using image formed by image forming apparatusCANON KK·Filed 2022·Granted Feb 13, 2024·0 cites·24 claims
- 2855US8229305B2Image forming apparatusKINUKAWA TATSUYA·Filed 2009·Granted Jul 24, 2012·1 cites·15 claims
- 2954US6730878B2Heater having electrically conductive substrate and image heating apparatus with heaterCANON KK·Filed 2002·Granted May 4, 2004·5 cites·44 claims
- 3054US4266045AEtherified phenolic chelate resin, process for its production, and method for adsorption treatmentUNITIKA LTD·Filed 1978·Granted May 5, 1981·6 cites·20 claims
- 3153US4517096AMethod of selective separation and concentration of gallium and/or indium from solutions containing low levels of them and high levels of other metal ionsDOWA MINING CO·Filed 1984·Granted May 14, 1985·9 cites·9 claims
- 3251US5600431AImage forming apparatus for forming color image with dry developerCANON KK·Filed 1994·Granted Feb 4, 1997·9 cites·13 claims
- 3346US6047149AImage forming apparatus having a rotatable first developing member, and a fixed second developing member having a housing partially covering the first developing memberCANON KK·Filed 1994·Granted Apr 4, 2000·7 cites·33 claims
- 3444US4197391APhenolic chelate resin and method of adsorption treatmentUNITIKA LTD·Filed 1978·Granted Apr 8, 1980·6 cites·8 claims
- 3542US9818050B2Image forming apparatus that detects overlap of color material, image processing apparatus and image processing methodCANON KK·Filed 2015·Granted Nov 14, 2017·0 cites·23 claims
- 3641US5561502AImage forming apparatusCANON KK·Filed 1995·Granted Oct 1, 1996·5 cites·43 claims
- 3730US4323458AProcess for removing heavy-metal ions from aqueous solutionUNITIKA LTD·Filed 1980·Granted Apr 6, 1982·1 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →