Inventor · disambiguated record
Kazuyoshi Hagiwara
Also filed as: HAGIWARA KAZUYOSHI
64 granted patents·9 pending applications·483 citations·filing 1990–2024
98Inventor score
Files withFUJIFILM BUSINESS INNOVATION CORP20CANON KK18FUJI XEROX CO LTD12NEW SHICOH MOTOR CO LTD12CASIO COMPUTER CO LTD2
Top patents by PatentIndex Score
73 records- 0194US5765082AColor image forming apparatus having shiftable transfer conveyor belt and attraction assisting rollerCASIO COMPUTER CO LTD·Filed 1996·Granted Jun 9, 1998·86 cites·17 claims
- 0290US9335507B2Lens driving deviceHUIZHOU DAYAWAN EVER BRIGHT ELECTRONIC INDUSTRY CO LTD·Filed 2014·Granted May 10, 2016·12 cites·6 claims
- 0388US6934497B2Image forming apparatus with belt, plural sensitized bodies, and belt positioning mechanismFUJI XEROX CO LTD·Filed 2003·Granted Aug 23, 2005·31 cites·9 claims
- 0485US9547148B2Lens driving deviceHUIZHOU DAYAWAN EVER BRIGHT ELECTRONIC IND CO LTD·Filed 2015·Granted Jan 17, 2017·5 cites·1 claims
- 0585US6541174B1Method using toner and developer for developing electrostatic imageCANON KK·Filed 2000·Granted Apr 1, 2003·20 cites·127 claims
- 0685US6077638AToner and developer for developing electrostatic image, process for production thereof and image forming methodCANON KK·Filed 1997·Granted Jun 20, 2000·29 cites·54 claims
- 0784US9465347B2Transport device and image forming apparatus that can align a transfer beltFUJI XEROX CO LTD·Filed 2014·Granted Oct 11, 2016·3 cites·12 claims
- 0883US5447813AToner for developing electrostatic image and image forming methodCANON KK·Filed 1994·Granted Sep 5, 1995·28 cites·77 claims
- 0981US5436701AImage forming method, image forming apparatus and apparatus unitCANON KK·Filed 1994·Granted Jul 25, 1995·26 cites·109 claims
- 1081US5268248AToner for developing electrostatic image and process for production thereofCANON KK·Filed 1991·Granted Dec 7, 1993·27 cites·41 claims
- 1180US5716746AMagnetic toner and process for producing magnetic tonerCANON KK·Filed 1994·Granted Feb 10, 1998·25 cites·20 claims
- 1279US7880983B2Lens driving deviceMICRO WIN TECH INC·Filed 2010·Granted Feb 1, 2011·6 cites·3 claims
- 1379US5406357ADeveloper for developing electrostatic image, image forming method, image forming apparatus and apparatus unitCANON KK·Filed 1994·Granted Apr 11, 1995·27 cites·42 claims
- 1479US5121521AMechanism for opening and closing an openable apparatusCASIO COMPUTER CO LTD·Filed 1991·Granted Jun 16, 1992·47 cites·11 claims
- 1576US7844199B2Image forming apparatus having detachable intermediate transfer bodyFUJI XEROX CO LTD·Filed 2008·Granted Nov 30, 2010·5 cites·8 claims
- 1675US8897668B2Cleaning device and image forming apparatus including the sameKANEKO ATSUSHI·Filed 2012·Granted Nov 25, 2014·2 cites·8 claims
- 1774US9465327B1Transfer mechanism and image forming apparatusFUJI XEROX CO LTD·Filed 2016·Granted Oct 11, 2016·1 cites·8 claims
- 1873US12072646B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Aug 27, 2024·0 cites·20 claims
- 1970US11656563B2Jacket, transfer device, and image forming deviceFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted May 23, 2023·0 cites·20 claims
- 2070US11237353B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2018·Granted Feb 1, 2022·1 cites·13 claims
- 2170US6187496B1Toner and developer for developing electrostatic image, process for production thereof and image forming methodCANON KK·Filed 1997·Granted Feb 13, 2001·16 cites·63 claims
- 2268US11493863B2Image forming apparatus with holding unit that holds a recording mediumFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Nov 8, 2022·0 cites·21 claims
- 2367US12216327B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2021·Granted Feb 4, 2025·0 cites·9 claims
- 2467US11609514B2Transfer member, transfer drum, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 21, 2023·0 cites·15 claims
- 2567US9046866B2Cleaning device and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jun 2, 2015·1 cites·9 claims
- 2667US5354637AMagnetic tonerCANON KK·Filed 1992·Granted Oct 11, 1994·20 cites·20 claims
- 2766US11768450B2Drum member and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Sep 26, 2023·0 cites·20 claims
- 2865US11194226B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2020·Granted Dec 7, 2021·0 cites·9 claims
- 2965US8744302B2Cleaning device, image forming apparatus, and transfer unit including pressing unitMATSUSHITA KAORU·Filed 2012·Granted Jun 3, 2014·1 cites·7 claims
- 3063US11966176B2Transfer member, transfer drum, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Apr 23, 2024·0 cites·13 claims
- 3162US12429707B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2021·Granted Sep 30, 2025·0 cites·15 claims
- 3262US11774896B2Method for attaching sheet member to cylinder body and sheet member packageFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 3, 2023·0 cites·20 claims
- 3361US12227001B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Feb 18, 2025·0 cites·20 claims
- 3460US12116227B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Oct 15, 2024·0 cites·7 claims
- 3560US10990040B2Transfer device and image forming apparatusFUJI XEROX CO LTD·Filed 2019·Granted Apr 27, 2021·0 cites·17 claims
- 3659US11878891B2Cylinder member and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Jan 23, 2024·0 cites·20 claims
- 3759US11599045B1Transfer device and image forming apparatus having nip member with predetermined geometryFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 7, 2023·0 cites·5 claims
- 3859US11579555B2Cylinder member and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Feb 14, 2023·0 cites·18 claims
- 3959US11474459B2Transfer device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 18, 2022·0 cites·21 claims
- 4058US12248195B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2021·Granted Mar 11, 2025·0 cites·9 claims
- 4158US12196980B2Lens driving device, camera device, and electronic apparatusNEW SHICOH MOTOR CO LTD·Filed 2021·Granted Jan 14, 2025·0 cites·7 claims
- 4258US11940744B2Transfer device and image forming apparatus for switching a transfer roller between pressed and separated statesFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 26, 2024·0 cites·15 claims
- 4356US11520252B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Dec 6, 2022·0 cites·5 claims
- 4454US11287764B1Image forming apparatus capable of preventing a discharge defect in an imageFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 29, 2022·0 cites·20 claims
- 4554US6057073AToner for developing electrostatic image, image forming method, developing apparatus unit, and process cartridgeCANON KK·Filed 1996·Granted May 2, 2000·11 cites·100 claims
- 4654US2025102991A1Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
- 4754US2025102992A1Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
- 4853US5288579ADeveloper for developing electrostatic image, image forming apparatus, apparatus unit and facsimile apparatusCANON KK·Filed 1991·Granted Feb 22, 1994·9 cites·77 claims
- 4952US9335508B2Lens driving deviceHUIZHOU DAYAWAN EVER BRIGHT ELECTRONIC INDUSTRY CO LTD·Filed 2014·Granted May 10, 2016·0 cites·8 claims
- 5052US5710965ADeveloper for developing electrostatic images and image forming methodCANON KK·Filed 1995·Granted Jan 20, 1998·10 cites·64 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →