Inventor · disambiguated record
Hirokazu Hamano
Also filed as: HAMANO HIROKAZU
46 granted patents·11 pending applications·361 citations·filing 1981–2024
98Inventor score
Files withFUJI XEROX CO LTD31FUJIFILM BUSINESS INNOVATION CORP14KAWAKAMI EIJI2NAKAZAWA HIROSHI2PIONEER ELECTRONIC CORP2
Top patents by PatentIndex Score
57 records- 0190US6500594B2Electrophotographic developer and process for forming imageFUJI XEROX CO LTD·Filed 2001·Granted Dec 31, 2002·34 cites·19 claims
- 0288US8494404B2Image forming apparatus, image forming method, cleaning apparatus, and cleaning methodTAKAGI MASAHIRO·Filed 2010·Granted Jul 23, 2013·5 cites·15 claims
- 0387US6150062AToners for developing electrostatic latent images, developers for electrostatic latent images and methods for forming imagesFUJI XEROX CO LTD·Filed 1998·Granted Nov 21, 2000·39 cites·37 claims
- 0486US6582869B2Electrophotographic toner, method of manufacturing the same, electrophotographic developer, and image forming methodFUJI XEROX CO LTD·Filed 2001·Granted Jun 24, 2003·27 cites·14 claims
- 0584US6187489B1Electrostatic latent image developing toner and image-forming processFUJI XEROX CO LTD·Filed 2000·Granted Feb 13, 2001·24 cites·15 claims
- 0682US7713669B2Toner for developing electrostatic images, electrostatic image developer, and image-forming methodFUJI XEROX CO LTD·Filed 2005·Granted May 11, 2010·7 cites·16 claims
- 0782US6607864B2Image forming methodFUJI XEROX CO LTD·Filed 2001·Granted Aug 19, 2003·20 cites·18 claims
- 0881US7906264B2Electrostatic latent image developing toner and method for producing the same, and electrostatic latent image developer, toner cartridge, process cartridge and image forming apparatusFUJI XEROX CO LTD·Filed 2007·Granted Mar 15, 2011·6 cites·12 claims
- 0979US12065547B2Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Aug 20, 2024·0 cites·14 claims
- 1077US12325779B2Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Granted Jun 10, 2025·0 cites·13 claims
- 1177US7291436B2Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming methodFUJI XEROX CO LTD·Filed 2004·Granted Nov 6, 2007·15 cites·19 claims
- 1277US6582867B2Toner for developing electrostatic latent image, process for producing the same, and process for forming imageFUJI XEROX CO LTD·Filed 2001·Granted Jun 24, 2003·16 cites·14 claims
- 1376US12460054B2Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Granted Nov 4, 2025·0 cites·12 claims
- 1476US8431301B2Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatusNINOMIYA MASANOBU·Filed 2008·Granted Apr 30, 2013·6 cites·18 claims
- 1575US6171747B1Image forming methodFUJI XEROX CO LTD·Filed 1999·Granted Jan 9, 2001·24 cites·18 claims
- 1675US5821023ADeveloper of electrostatic latent image, carrier therefor, method for forming image and image forming apparatus therebyFUJI XEROX CO LTD·Filed 1997·Granted Oct 13, 1998·24 cites·30 claims
- 1774US12187861B2Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Jan 7, 2025·0 cites·12 claims
- 1873US8728693B2Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatusHAMANO HIROKAZU·Filed 2011·Granted May 20, 2014·2 cites·15 claims
- 1973US5958642AToner for developing an electrostatic charge image, developing agent for electrostatic charge image and image formation methodFUJI XEROX CO LTD·Filed 1998·Granted Sep 28, 1999·23 cites·22 claims
- 2073US2024327617A1Cellulose particlesFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2172US6120959ABlack toner for developing electrostatic latent imageFUJI XEROX CO LTD·Filed 1999·Granted Sep 19, 2000·20 cites·13 claims
- 2272US2024327618A1Cellulose particlesFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2371US8916321B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Dec 23, 2014·1 cites·20 claims
- 2471US2024325258A1Cellulose particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2024·Application pending·0 cites
- 2571US2024327619A1Cellulose particles and method for producing cellulose particlesFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2671US2024261206A1Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2771US2024327545A1Cellulose acetate particlesFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2867US2023312842A1Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 2967US2023391970A1Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 3064US2024325257A1Cellulose particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2023·Application pending·0 cites
- 3162US6203958B1Toner and method of image formation using the sameFUJI XEROX CO LTD·Filed 2000·Granted Mar 20, 2001·8 cites·16 claims
- 3262US2023250262A1Cellulosic particleFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 3359US6942951B2Image forming methodFUJI XEROX CO LTD·Filed 2002·Granted Sep 13, 2005·7 cites·12 claims
- 3458US8329375B2Electrostatic charge image developing toner and method of producing the same, electrostatic charge image developer, toner cartridge, process cartridge, and image forming deviceNAKAZAWA HIROSHI·Filed 2009·Granted Dec 11, 2012·1 cites·4 claims
- 3558US6864029B2Electrophotographic toner, manufacture of the same, electrostatic latent image developer, and image forming methodFUJI XEROX CO LTD·Filed 2002·Granted Mar 8, 2005·6 cites·14 claims
- 3657US8563208B2Electrostatic charge image developing toner and method of producing the same, electrostatic charge image developer, toner cartridge, process cartridge, and image forming deviceNAKAZAWA HIROSHI·Filed 2012·Granted Oct 22, 2013·0 cites·8 claims
- 3757US7972758B2Toner for development of electrostatic image, method of producing the same, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2007·Granted Jul 5, 2011·1 cites·19 claims
- 3857US6895206B2Image fixing apparatus and image fixing method for a crystalline resin-containing tonerFUJI XEROX CO LTD·Filed 2003·Granted May 17, 2005·6 cites·19 claims
- 3957US6444389B1Toner for developing electrostatic latent image, two-component developer and image-forming processFUJI XEROX CO LTD·Filed 2000·Granted Sep 3, 2002·6 cites·19 claims
- 4056USD270633SVideo disc playerPIONEER ELECTRONIC CORP·Filed 1981·Granted Sep 20, 1983·6 cites·1 claims
- 4155US7432031B2Toner for electrostatic charge developing, production method thereof, developer for electrostatic charge developing using the same, and image forming methodFUJI XEROX CO LTD·Filed 2005·Granted Oct 7, 2008·1 cites·21 claims
- 4254US6096463AImage forming methodFUJI XEROX CO LTD·Filed 1999·Granted Aug 1, 2000·10 cites·19 claims
- 4353US8580468B2Developer for electrostatic photography, process cartridge for image forming apparatus, image forming apparatus, and image forming methodTAGUCHI TETSUYA·Filed 2011·Granted Nov 12, 2013·0 cites·17 claims
- 4452US8871416B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming method, and image forming apparatusSAITO YUTAKA·Filed 2012·Granted Oct 28, 2014·0 cites·18 claims
- 4551US8945806B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming methodKAWAKAMI EIJI·Filed 2012·Granted Feb 3, 2015·0 cites·12 claims
- 4649US9063466B2Developing device having an attaching unit for attaching developer and image forming apparatus including the sameFUJI XEROX CO LTD·Filed 2013·Granted Jun 23, 2015·0 cites·9 claims
- 4749US8728695B2Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming methodKAWAKAMI EIJI·Filed 2012·Granted May 20, 2014·0 cites·19 claims
- 4847US6569592B2Image forming methodFUJI XEROX CO LTD·Filed 2001·Granted May 27, 2003·3 cites·16 claims
- 4945US9002244B2Image forming apparatus including developing device using toner holding member with specific surface roughnessFUJI XEROX CO LTD·Filed 2013·Granted Apr 7, 2015·0 cites·20 claims
- 5045US6895205B2Image fixing apparatus with cooling unit and image fixing methodFUJI XEROX CO LTD·Filed 2003·Granted May 17, 2005·3 cites·20 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →