Inventor · disambiguated record

Sakon Takahashi

Also filed as: TAKAHASHI SAKON

42 granted patents·10 pending applications·186 citations·filing 1995–2024

97Inventor score

Technology areasG03G Y10T

Files withFUJI XEROX CO LTD34 FUJIFILM BUSINESS INNOVATION CORP7 SAITO YUTAKA2 TAKAHASHI SAKON2 HASEGAWA TOSHIAKI1

Top patents by PatentIndex Score

52 records

0194US6403271B1Toner for developing electrostatic latent image, process for producing the same, developer for developing electrostatic latent image, and process for forming imageFUJI XEROX CO LTD·Filed 2000·Granted Jun 11, 2002·45 cites·12 claims
0292US8923712B1Image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Dec 30, 2014·13 cites·6 claims
0388US9442404B1Electrostatic-image-developing toner, electrostatic image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2015·Granted Sep 13, 2016·4 cites·11 claims
0488US8455168B2Electrophotographic developer, developer cartridge, process cartridge, and image forming apparatusKIYONO FUSAKO·Filed 2010·Granted Jun 4, 2013·6 cites·17 claims
0585US8318399B2Electrostatic charge image development carrier, electrostatic charge image developer, process cartridge, image forming apparatus, and image forming methodHASEGAWA TOSHIAKI·Filed 2010·Granted Nov 27, 2012·4 cites·17 claims
0684US10527962B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Jan 7, 2020·2 cites·16 claims
0784US6479206B1Toner for developing electrostatic latent image, process for producing the same, developer for developing electrostatic latent image, and process for forming imageFUJI XEROX CO LTD·Filed 2002·Granted Nov 12, 2002·19 cites·9 claims
0882US10025210B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2016·Granted Jul 17, 2018·2 cites·16 claims
0979US10599061B1Electrostatic-image developing toner, electrostatic-image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJI XEROX CO LTD·Filed 2019·Granted Mar 24, 2020·1 cites·12 claims
1078US8628900B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodKADOKURA YASUO·Filed 2012·Granted Jan 14, 2014·2 cites·12 claims
1176US10394151B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Aug 27, 2019·1 cites·18 claims
1276US6489075B2Toner for developing electrostatic latent image, process for producing the same, developer for developing electrostatic latent image, and process for forming imageFUJI XEROX CO LTD·Filed 2002·Granted Dec 3, 2002·12 cites·16 claims
1371US8989631B2Image-forming apparatus and methodFUJI XEROX CO LTD·Filed 2014·Granted Mar 24, 2015·1 cites·4 claims
1470US9274483B2Image forming apparatus, image forming method, and computer readable medium having image density adjustment controlFUJI XEROX CO LTD·Filed 2014·Granted Mar 1, 2016·1 cites·18 claims
1570US9195167B2Image forming apparatusFUJI XEROX CO LTD·Filed 2014·Granted Nov 24, 2015·2 cites·17 claims
1670US9091971B2Image-forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jul 28, 2015·1 cites·13 claims
1770US8913916B2Developer, image-forming apparatus, and method for forming imageFUJI XEROX CO LTD·Filed 2013·Granted Dec 16, 2014·1 cites·15 claims
1870US5849448ACarrier for developer of electrostatic latent image, method for making said carrierFUJI XEROX CO LTD·Filed 1997·Granted Dec 15, 1998·20 cites·20 claims
1969US6746810B2Image formation method, replenishing toner used in this method and method of producing the same, and carrier-containing toner cartridgeFUJI XEROX CO LTD·Filed 2002·Granted Jun 8, 2004·11 cites·22 claims
2068US8942587B2Electrostatic image developer and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jan 27, 2015·1 cites·6 claims
2161US6040102AElectrostatic latent image developer and image forming methodFUJI XEROX CO LTD·Filed 1997·Granted Mar 21, 2000·15 cites·19 claims
2260US11181841B2Toner for electrostatic image development, electrostatic image developer, and toner cartridgeFUJIFILM BUSINESS INNOVATION CORP·Filed 2020·Granted Nov 23, 2021·0 cites·15 claims
2360US10423087B2Electrostatic charge image developing toner and electrostatic charge image developerFUJI XEROX CO LTD·Filed 2018·Granted Sep 24, 2019·0 cites·20 claims
2459US10585367B2Electrostatic charge image developing toner and electrostatic charge image developerFUJI XEROX CO LTD·Filed 2018·Granted Mar 10, 2020·0 cites·17 claims
2559US10488776B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Nov 26, 2019·0 cites·19 claims
2658US10514623B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2018·Granted Dec 24, 2019·0 cites·15 claims
2757US6673502B2Carrier for development of electrostatic latent image, electrostatic latent image developer and image forming methodFUJI XEROX CO LTD·Filed 2001·Granted Jan 6, 2004·6 cites·15 claims
2855US5629120AElectrostatic image developing carrier and electrostatic image developerFUJI XEROX CO LTD·Filed 1995·Granted May 13, 1997·11 cites·10 claims
2955US2025053108A1Carrier for electrostatic image development, electrostatic image developer, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
3054US9164436B2Fixing device and image forming apparatusFUJI XEROX CO LTD·Filed 2014·Granted Oct 20, 2015·0 cites·15 claims
3153US6447972B1Charging member for development of electrostatic latent image, electrostatic latent image developer, and magnetic sleeveFUJI XEROX CO LTD·Filed 2000·Granted Sep 10, 2002·5 cites·17 claims
3252US9910372B2Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2016·Granted Mar 6, 2018·0 cites·18 claims
3351US11614694B2Electrostatic image developer, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2020·Granted Mar 28, 2023·0 cites·13 claims
3450US9535362B2Carrier set for electrostatic charge image developer, electrostatic charge image developer set, and process cartridgeFUJI XEROX CO LTD·Filed 2015·Granted Jan 3, 2017·0 cites·15 claims
3549US2024134299A1Electrostatic image developer, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
3648US8735036B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodKITAJIMA KATSUYUKI·Filed 2012·Granted May 27, 2014·0 cites·10 claims
3748US8383308B2Positively chargeable two-component developer, image forming method, and image forming apparatusFUJI XEROX CO LTD·Filed 2008·Granted Feb 26, 2013·0 cites·5 claims
3847US7776502B2Toner for developing electrostatic charge image, electrostatic charge image developer, image forming method and image forming apparatusFUJI XEROX CO LTD·Filed 2007·Granted Aug 17, 2010·0 cites·19 claims
3946US8507167B2Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge and image forming apparatusSAITO YUTAKA·Filed 2010·Granted Aug 13, 2013·0 cites·18 claims
4046US2023168598A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
4144US9244386B2Developing device and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jan 26, 2016·0 cites·10 claims
4244US8597866B2Method of producing a carrier for electrophotography and method of producing a developer for electrophotographyTAKAHASHI SAKON·Filed 2009·Granted Dec 3, 2013·0 cites·13 claims
4343US2023102175A1Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
4442US2023099642A1Toner for developing electrostatic charge image, electrostatic charge image developer, and toner cartridgeFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
4541US8685608B2Two-component developer, developer cartridge, process cartridge, and image forming apparatusTAKAHASHI SAKON·Filed 2010·Granted Apr 1, 2014·0 cites·14 claims
4640US2019033740A1Toner external additive, electrostatic charge image developing toner, and electrostatic charge image developerFUJI XEROX CO LTD·Filed 2018·Application pending·0 cites
4738US9835962B2Electrostatic image-developing toner, electrostatic image developer, and toner cartridgeFUJI XEROX CO LTD·Filed 2015·Granted Dec 5, 2017·0 cites·15 claims
4838US2013071781A1Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming methodSAITO YUTAKA·Filed 2012·Application pending·0 cites
4937US8394567B2Toner, developer, toner cartridge, process cartridge, and image forming apparatusKAMIWAKI SATOSHI·Filed 2010·Granted Mar 12, 2013·0 cites·13 claims
5036US2012093543A1Electrostatic latent image developer, method for forming image, and image forming apparatusIKEDA MIHO·Filed 2011·Application pending·0 cites

Showing the top 50 of 52 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →