Inventor · disambiguated record
Daisuke Ishizuka
Also filed as: ISHIZUKA DAISUKE
42 granted patents·26 pending applications·328 citations·filing 1995–2025
97Inventor score
Files withFUJI XEROX CO LTD22FUJIFILM BUSINESS INNOVATION CORP21BROTHER IND LTD11CANON KK8ISHIZUKA DAISUKE3
Top patents by PatentIndex Score
68 records- 0194US12111605B2Image forming apparatus with movable joint cam, and rotatorBROTHER IND LTD·Filed 2022·Granted Oct 8, 2024·2 cites·20 claims
- 0291US12429800B2Image forming apparatus with fixing device having lever and fixed handleBROTHER IND LTD·Filed 2024·Granted Sep 30, 2025·2 cites·20 claims
- 0390US6000894ABookbinding apparatusCANON KK·Filed 1996·Granted Dec 14, 1999·79 cites·8 claims
- 0487US8620658B2Voice chat system, information processing apparatus, speech recognition method, keyword data electrode detection method, and program for speech recognitionNAKADE MOTOKI·Filed 2008·Granted Dec 31, 2013·25 cites·49 claims
- 0587US2025321509A1Toner for developing electrostatic charge image and electrostatic charge image developerFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 0686US7852525B2Surface illumination unit and transparent original reading apparatusCANON KK·Filed 2005·Granted Dec 14, 2010·13 cites·18 claims
- 0784US10520841B2Electrostatic image developing toner, electrostatic latent image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Dec 31, 2019·2 cites·17 claims
- 0883US6577837B2Image forming method and image forming apparatusFUJI XEROX CO LTD·Filed 2001·Granted Jun 10, 2003·23 cites·17 claims
- 0980US12298701B2Image forming apparatusBROTHER IND LTD·Filed 2023·Granted May 13, 2025·0 cites·14 claims
- 1076US5592280ASheet binding apparatus capable of performing two kinds of binding processesCANON KK·Filed 1995·Granted Jan 7, 1997·55 cites·18 claims
- 1175US7001701B2Color toner, electrostatic latent image developer, image forming method, and image producing deviceFUJI XEROX CO LTD·Filed 2004·Granted Feb 21, 2006·12 cites·21 claims
- 1272US11635726B2Image forming apparatusBROTHER IND LTD·Filed 2021·Granted Apr 25, 2023·0 cites·12 claims
- 1372US6094510AImage processing apparatus and method for predicting a compression rate of image data processed to modify an imageCANON KK·Filed 1997·Granted Jul 25, 2000·52 cites·40 claims
- 1472US2025306487A1Electrostatic charge image developing toner set, electrostatic charge image developer set, toner cartridge set, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 1570US2025306489A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 1669US6784410B2Image input system, image input apparatus, image input method, program, and storage mediumCANON KK·Filed 2002·Granted Aug 31, 2004·9 cites·19 claims
- 1769US6492782B2Image input apparatus, image input system, light source control method, and storage mediumCANON KK·Filed 2001·Granted Dec 10, 2002·9 cites·16 claims
- 1868US11003128B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted May 11, 2021·0 cites·19 claims
- 1968US2025306485A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 2068US2025306488A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 2167US2025306483A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 2264US8728697B2Carrier for electrostatic image developer, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatusISHIZUKA DAISUKE·Filed 2010·Granted May 20, 2014·1 cites·19 claims
- 2363US12454584B2Method of producing resin particles and method of producing electrostatic charge image developing tonerFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Oct 28, 2025·0 cites·14 claims
- 2463US12105470B2Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 1, 2024·0 cites·14 claims
- 2563US6846603B2Color toner, electrostatic latent image developer, image forming method, and image producing deviceFUJI XEROX CO LTD·Filed 2003·Granted Jan 25, 2005·7 cites·21 claims
- 2662US12372891B2Toner for developing electrostatic charge image and electrostatic charge image developerFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Jul 29, 2025·0 cites·9 claims
- 2762US12298711B2Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted May 13, 2025·0 cites·17 claims
- 2860US12259683B2Toner for developing electrostatic charge image and electrostatic charge image developerFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 25, 2025·0 cites·18 claims
- 2960US7554704B2Image scanning apparatus having a scanning position adjustment capabilityCANON KK·Filed 2004·Granted Jun 30, 2009·4 cites·9 claims
- 3057US7977022B2Developer, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2007·Granted Jul 12, 2011·1 cites·18 claims
- 3157US6420080B1Process for forming imageFUJI XEROX CO LTD·Filed 2001·Granted Jul 16, 2002·6 cites·17 claims
- 3257US2025304732A1Resin particles and method for producing same, aqueous dispersion, powder particles, resin composition, and electrostatic charge image developing tonerFUJIFILM BUSINESS INNOVATION CORP·Filed 2025·Application pending·0 cites
- 3357US2024326530A1Driving assistance deviceAISIN CORP·Filed 2024·Application pending·0 cites
- 3456US9612542B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2014·Granted Apr 4, 2017·0 cites·15 claims
- 3555US12487538B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Dec 2, 2025·0 cites·14 claims
- 3654US2025164923A1Image forming apparatusBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 3754US2016313660A1Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2016·Application pending·0 cites
- 3853US10466605B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Nov 5, 2019·0 cites·19 claims
- 3953US10416597B2Image forming apparatus with a fan operable under noise-reducible controlBROTHER IND LTD·Filed 2018·Granted Sep 17, 2019·0 cites·17 claims
- 4052US11860563B2Image forming apparatus configured to control conveying speed of sheet in accordance with ambient temperature after paper jam is resolvedBROTHER IND LTD·Filed 2022·Granted Jan 2, 2024·0 cites·9 claims
- 4152US10578989B2Electrostatic charge image developer, developer cartridge, and process cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Mar 3, 2020·0 cites·16 claims
- 4252US9575428B2Electrostatic-image developing toner, electrostatic image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2015·Granted Feb 21, 2017·0 cites·20 claims
- 4351US5899649ABook-binding apparatus and image forming apparatusCANON KK·Filed 1996·Granted May 4, 1999·16 cites·9 claims
- 4451US2024329552A1Electrostatic image developing toner, electrostatic image developer, and toner cartridgeFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 4550US2016070186A1Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2015·Application pending·0 cites
- 4649US2024319628A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 4749US2024319623A1Electrostatic image developing toner, electrostatic image developer, toner cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 4849US2024319626A1Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 4949US2024061374A1Image forming apparatusBROTHER IND LTD·Filed 2023·Application pending·0 cites
- 5048US8383308B2Positively chargeable two-component developer, image forming method, and image forming apparatusFUJI XEROX CO LTD·Filed 2008·Granted Feb 26, 2013·0 cites·5 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →