Inventor · disambiguated record
Akihiro Fujiwara
Also filed as: FUJIWARA AKIHIRO
79 granted patents·14 pending applications·1,596 citations·filing 1983–2025
99Inventor score
Top patents by PatentIndex Score
93 records- 0198US11703794B2Cartridge and image forming apparatusCANON KK·Filed 2022·Granted Jul 18, 2023·4 cites·29 claims
- 0297US12072664B2Cartridge and image forming apparatusCANON KK·Filed 2023·Granted Aug 27, 2024·2 cites·30 claims
- 0397US7303289B2Projection type display apparatusCANON KK·Filed 2005·Granted Dec 4, 2007·40 cites·6 claims
- 0496US10627780B2Cartridge and image forming apparatusCANON KK·Filed 2019·Granted Apr 21, 2020·9 cites·10 claims
- 0595US9188945B2Cartridge and image forming apparatusANAN OSAMU·Filed 2012·Granted Nov 17, 2015·13 cites·17 claims
- 0695US5031049AAutomatic object image follow-up deviceCANON KK·Filed 1990·Granted Jul 9, 1991·187 cites·96 claims
- 0794US5272538AExposure control deviceCANON KK·Filed 1990·Granted Dec 21, 1993·153 cites·49 claims
- 0893US5455647AOptical apparatus in which image distortion is removedCANON KK·Filed 1994·Granted Oct 3, 1995·44 cites·10 claims
- 0992US10962927B2Cartridge and imaging forming apparatusCANON KK·Filed 2019·Granted Mar 30, 2021·5 cites·9 claims
- 1091US11449001B2Cartridge and image forming apparatusCANON KK·Filed 2021·Granted Sep 20, 2022·2 cites·6 claims
- 1188US9594342B2Developer container, developing apparatus, process cartridge, image forming apparatus, and apparatus main body of image forming apparatusCANON KK·Filed 2016·Granted Mar 14, 2017·3 cites·17 claims
- 1288US9342047B2Movement limiting apparatus for image forming apparatus process cartridgeFUJIWARA AKIHIRO·Filed 2012·Granted May 17, 2016·6 cites·6 claims
- 1386US5212516AAutomatic focus adjusting deviceCANON KK·Filed 1992·Granted May 18, 1993·77 cites·30 claims
- 1484US11274834B2Heat exchanger and air conditioner having the sameSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Mar 15, 2022·2 cites·20 claims
- 1584US9361000B2Information display device for vehicleMAZDA MOTOR·Filed 2014·Granted Jun 7, 2016·14 cites·9 claims
- 1684US4591919AAutomatic focus control system and camera using sameCANON KK·Filed 1983·Granted May 27, 1986·37 cites·32 claims
- 1782US12287600B2Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Apr 29, 2025·0 cites·15 claims
- 1880US6233009B1Image-shake correcting device for detecting vibration frequency and for changing vibration characteristicsCANON KK·Filed 1997·Granted May 15, 2001·66 cites·37 claims
- 1980US6147938AVehicle electronic systemMAZDA MOTOR·Filed 1999·Granted Nov 14, 2000·59 cites·20 claims
- 2080US5672862AOptical apparatus having image shake preventing functionCANON KK·Filed 1994·Granted Sep 30, 1997·49 cites·19 claims
- 2179US5629735AImage sensing device having a selectable detecting areaCANON KK·Filed 1995·Granted May 13, 1997·61 cites·53 claims
- 2278US9642242B2Power conversion apparatusIDO YUSAKU·Filed 2015·Granted May 2, 2017·3 cites·5 claims
- 2378US6999125B2Image pickup apparatusCANON KK·Filed 2001·Granted Feb 14, 2006·16 cites·26 claims
- 2478US6208377B1Image-shake correcting device for detecting vibration frequency and for changing vibration characteristicsCANON KK·Filed 1997·Granted Mar 27, 2001·58 cites·59 claims
- 2578US5128768AAutomatic focusing device having a settable focus detection areaCANON KK·Filed 1990·Granted Jul 7, 1992·37 cites·51 claims
- 2678US2025164918A1Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 2777US5677733AExposure control device having a plurality of light detecting areasCANON KK·Filed 1994·Granted Oct 14, 1997·36 cites·45 claims
- 2876US9811025B2Developer container, development device, process cartridge, and image forming apparatusCANON KK·Filed 2016·Granted Nov 7, 2017·1 cites·39 claims
- 2976US8886109B2Cleaning unit, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Nov 11, 2014·2 cites·19 claims
- 3076US5204749AAutomatic follow-up focus detecting device and automatic follow-up deviceCANON KK·Filed 1992·Granted Apr 20, 1993·39 cites·16 claims
- 3176US2025147461A1Cartridge and image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 3275US12025941B2Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatusCANON KK·Filed 2021·Granted Jul 2, 2024·0 cites·33 claims
- 3375US7148916B2Photographing systemCANON KK·Filed 2001·Granted Dec 12, 2006·13 cites·11 claims
- 3475US5187585AImage sensing apparatus with settable focus detection areaCANON KK·Filed 1992·Granted Feb 16, 1993·32 cites·36 claims
- 3575US4980773AIn focus detecting apparatus having a plurality of bandpass filtersCANON KK·Filed 1989·Granted Dec 25, 1990·27 cites·37 claims
- 3672US6734903B1Image sensing apparatusCANON KK·Filed 1995·Granted May 11, 2004·42 cites·28 claims
- 3772US6172707B1Image pickup deviceCANON KK·Filed 1997·Granted Jan 9, 2001·41 cites·20 claims
- 3872US6088060AAutomatic focusing deviceCANON KK·Filed 1997·Granted Jul 11, 2000·37 cites·19 claims
- 3972US5805212AVibration correcting apparatus controlling the gain of the control circuitCANON KK·Filed 1995·Granted Sep 8, 1998·43 cites·24 claims
- 4071US9599955B2Developer storage unit, development device, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Mar 21, 2017·1 cites·32 claims
- 4170US12429811B2Cartridge and image forming apparatusCANON KK·Filed 2020·Granted Sep 30, 2025·0 cites·105 claims
- 4269US2025303758A1Image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 4367US5623309AAutomatic focusing device with adaptive signal filteringCANON KK·Filed 1994·Granted Apr 22, 1997·25 cites·33 claims
- 4464US7623080B2Loop antenna attached to rear window of vehicleFUJITSU TEN LTD·Filed 2006·Granted Nov 24, 2009·5 cites·21 claims
- 4563US10048622B2Developer container, development device, process cartridge, and image forming apparatusCANON KK·Filed 2017·Granted Aug 14, 2018·0 cites·8 claims
- 4662US5061954AAutomatic focus adjustment systemCANON KK·Filed 1990·Granted Oct 29, 1991·22 cites·25 claims
- 4761US7488989B2Semiconductor light emitting element, its manufacturing method and semiconductor light emitting deviceTOSHIBA KK·Filed 2004·Granted Feb 10, 2009·10 cites·20 claims
- 4861US7307599B2Display apparatusCANON KK·Filed 2003·Granted Dec 11, 2007·5 cites·8 claims
- 4961US5459542AImage-blur preventing apparatusCANON KK·Filed 1993·Granted Oct 17, 1995·19 cites·28 claims
- 5060US6630914B1Display apparatus having facility for selective indication of apparatus use termCANON KK·Filed 1997·Granted Oct 7, 2003·20 cites·7 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →