Inventor · disambiguated record
Masaaki Furukawa
Also filed as: FURUKAWA MASAAKI
42 granted patents·3 pending applications·66 citations·filing 1978–2025
96Inventor score
Top patents by PatentIndex Score
45 records- 0195US11740583B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Aug 29, 2023·2 cites·14 claims
- 0295US10082765B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2017·Granted Sep 25, 2018·7 cites·28 claims
- 0392US11249438B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted Feb 15, 2022·2 cites·4 claims
- 0482US12197166B2Image forming apparatusBROTHER IND LTD·Filed 2023·Granted Jan 14, 2025·0 cites·14 claims
- 0580US12092991B2Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housingBROTHER IND LTD·Filed 2023·Granted Sep 17, 2024·0 cites·10 claims
- 0679US11531298B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2022·Granted Dec 20, 2022·0 cites·6 claims
- 0778US10684587B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2019·Granted Jun 16, 2020·0 cites·6 claims
- 0877US9442154B2Non-contact discharge evaluation method and non-contact discharge evaluation apparatusKYUSHU INST TECHNOLOGY·Filed 2012·Granted Sep 13, 2016·3 cites·13 claims
- 0977US2025181012A1Cartridge including holder that holds electrical contact surface and has hole overlapped with the sameBROTHER IND LTD·Filed 2025·Application pending·0 cites
- 1075US12242213B2Cartridge including holder that holds electrical contact surface and has hole overlapped with the sameBROTHER IND LTD·Filed 2023·Granted Mar 4, 2025·0 cites·25 claims
- 1174US11281155B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2020·Granted Mar 22, 2022·0 cites·6 claims
- 1274US10579011B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2018·Granted Mar 3, 2020·0 cites·13 claims
- 1373US12174559B2Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casingBROTHER IND LTD·Filed 2023·Granted Dec 24, 2024·0 cites·1 claims
- 1473US11914323B2Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housingBROTHER IND LTD·Filed 2021·Granted Feb 27, 2024·0 cites·32 claims
- 1573US10831151B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2020·Granted Nov 10, 2020·0 cites·1 claims
- 1673US10197969B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2018·Granted Feb 5, 2019·0 cites·8 claims
- 1772US12066784B2Image forming apparatusBROTHER IND LTD·Filed 2023·Granted Aug 20, 2024·0 cites·12 claims
- 1871US10705455B2Toner cartridge including shutter rotatable between first position and second positionBROTHER IND LTD·Filed 2019·Granted Jul 7, 2020·0 cites·9 claims
- 1970US11333999B2Toner cartridge including shutter rotatable between first position and second positionBROTHER IND LTD·Filed 2021·Granted May 17, 2022·0 cites·9 claims
- 2069US11650520B2Toner cartridge having electrical contact surface that can contact electrical contact surface of drum cartridge in accordance with pivotal movement of casingBROTHER IND LTD·Filed 2022·Granted May 16, 2023·0 cites·14 claims
- 2169US10908533B2Toner cartridge including shutter rotatable between first position and second positionBROTHER IND LTD·Filed 2020·Granted Feb 2, 2021·0 cites·8 claims
- 2269US10866557B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted Dec 15, 2020·0 cites·3 claims
- 2367US11316592B2Optical module and optical communication systemLUMENTUM JAPAN INC·Filed 2021·Granted Apr 26, 2022·0 cites·20 claims
- 2463US10944479B2Optical module and optical communication systemLUMENTUM JAPAN INC·Filed 2020·Granted Mar 9, 2021·0 cites·20 claims
- 2561US5044287AMethod of controlling combustion in a fluidized bed furnaceEBARA CORP·Filed 1990·Granted Sep 3, 1991·24 cites·6 claims
- 2661US2025351553A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 2759US11906924B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Feb 20, 2024·0 cites·8 claims
- 2858US2024405122A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 2957US10041980B2Three-dimensional surface potential distribution measurement apparatusTOSHIBA MITSUBISHI ELEC IND·Filed 2014·Granted Aug 7, 2018·1 cites·6 claims
- 3056US11886129B2Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridgeBROTHER IND LTD·Filed 2022·Granted Jan 30, 2024·0 cites·21 claims
- 3153US10466646B2Process cartridge and image forming apparatusBROTHER IND LTD·Filed 2018·Granted Nov 5, 2019·0 cites·24 claims
- 3250US11860558B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Jan 2, 2024·0 cites·5 claims
- 3349US11474473B2Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulatedBROTHER IND LTD·Filed 2021·Granted Oct 18, 2022·0 cites·17 claims
- 3449USD260987SVideo tape recorderHITACHI LTD·Filed 1979·Granted Sep 29, 1981·4 cites·1 claims
- 3548US11846896B2Toner cartridge including movable shutter provided with protrusion on which electrical contact surface is providedBROTHER IND LTD·Filed 2022·Granted Dec 19, 2023·0 cites·47 claims
- 3646US5244147AFurnace pressure control methodEBARA CORP·Filed 1992·Granted Sep 14, 1993·12 cites·8 claims
- 3745US12025942B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Jul 2, 2024·0 cites·10 claims
- 3844USD259784SVideo tape recorderHITACHI LTD·Filed 1978·Granted Jul 7, 1981·4 cites·1 claims
- 3940US11333697B2Three-dimensional surface potential distribution measurement systemTOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP·Filed 2018·Granted May 17, 2022·0 cites·4 claims
- 4039US9714968B2Surface potential distribution measuring deviceTOSHIBA MITSUBISHI-ELECTRIC IND SYSTEMS CORP·Filed 2013·Granted Jul 25, 2017·0 cites·11 claims
- 4137US10144033B2Substrate processing apparatus and substrate processing methodSCREEN HOLDINGS CO LTD·Filed 2016·Granted Dec 4, 2018·0 cites·6 claims
- 4236US6454057B2Brake cylinderNISSHIN SPINNING·Filed 2001·Granted Sep 24, 2002·1 cites·6 claims
- 4333USD1095670SPhotosensitive drum unitBROTHER IND LTD·Filed 2023·Granted Sep 30, 2025·0 cites·1 claims
- 4433US5713437ABrake cylinder having efficient air bleedingNISSHIN SPINNING·Filed 1995·Granted Feb 3, 1998·6 cites·2 claims
- 4528US8798459B2Optical receiver and method of detecting loss of optical signal of the optical receiverFURUKAWA MASAAKI·Filed 2009·Granted Aug 5, 2014·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →