Inventor · disambiguated record
Hiroshi Nakazawa
Also filed as: BABA YASUHARU · NAKAZAWA HIROSHI · OHSAWA MITSUO
76 granted patents·22 pending applications·1,709 citations·filing 1977–2021
99Inventor score
Files withFUJI XEROX CO LTD35FUJIFILM BUSINESS INNOVATION CORP14SONY CORP9NAKAZAWA HIROSHI8TOSHIBA KK4
Top patents by PatentIndex Score
98 records- 0196US4236198ASwitching regulatorSONY CORP·Filed 1978·Granted Nov 25, 1980·75 cites·7 claims
- 0295US8369056B2Power supply control device, method for controlling power supply, program and power supply deviceTDK LAMBDA CORP·Filed 2010·Granted Feb 5, 2013·832 cites·7 claims
- 0394US4880719ATwo component electrophotographic developerFUJI XEROX CO LTD·Filed 1988·Granted Nov 14, 1989·64 cites·8 claims
- 0493US4564709AProcess for the production of dialkyl-trisulfidesPENNWALT CORP·Filed 1983·Granted Jan 14, 1986·46 cites·9 claims
- 0590US7964300B2Battery packTDK LAMBDA CORP·Filed 2006·Granted Jun 21, 2011·17 cites·4 claims
- 0690US7575841B2Toner for electrophotography, manufacturing method of toner for electrophotography, developer for electrophotography, and image forming methodFUJI XEROX CO LTD·Filed 2005·Granted Aug 18, 2009·12 cites·16 claims
- 0789US7267920B2Toner for developing electrostatic latent images, production method thereof, and electrostatic latent image developer using the sameFUJI XEROX CO LTD·Filed 2004·Granted Sep 11, 2007·32 cites·18 claims
- 0888US7368214B2Electrostatic latent image developing toner and manufacturing method thereofFUJI XEROX CO LTD·Filed 2005·Granted May 6, 2008·10 cites·19 claims
- 0988US6970812B2Virtual-space providing apparatus, virtual-space providing system, and virtual-space providing methodSONY CORP·Filed 2001·Granted Nov 29, 2005·57 cites·7 claims
- 1088US4335423ATransformerSONY CORP·Filed 1980·Granted Jun 15, 1982·35 cites·15 claims
- 1187US4180852AControl circuit for use in a switching-type regulatorSONY CORP·Filed 1978·Granted Dec 25, 1979·34 cites·10 claims
- 1286US7951519B2Toner for development of electrostatic image, method for manufacturing the same, developer for development of electrostatic image, toner cartridge, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2008·Granted May 31, 2011·8 cites·24 claims
- 1386US7488562B2Electrophotographic toner, method for producing the same, electrophotographic developer, method for producing the developer, and image forming methodFUJI XEROX CO LTD·Filed 2005·Granted Feb 10, 2009·8 cites·14 claims
- 1485US5296324AToner for developing electrostatic charge image and process for preparing the sameFUJI XEROX CO LTD·Filed 1992·Granted Mar 22, 1994·33 cites·11 claims
- 1584US7498113B2Toner for developing electrostatic image, production method thereof, resin particle dispersion, and electrostatic image developerFUJI XEROX CO LTD·Filed 2005·Granted Mar 3, 2009·7 cites·18 claims
- 1680US6171744B1Toner for electrophotography, method for producing it, and method of image formationFUJI XEROX CO LTD·Filed 2000·Granted Jan 9, 2001·18 cites·17 claims
- 1779US7859226B2Method and device for safety protection of secondary batteryTDK LAMBDA CORP·Filed 2007·Granted Dec 28, 2010·17 cites·2 claims
- 1878US5448435ADisc drive magnetic latch having permanent magnet and electromagnetFUJI ELECTRIC CO LTD·Filed 1991·Granted Sep 5, 1995·30 cites·6 claims
- 1977US8461807B2Battery protection circuit, method for protecting battery, power supply device and programSENRIUCHI TADAO·Filed 2010·Granted Jun 11, 2013·8 cites·9 claims
- 2077US7531276B2Color image forming method and color toner forming methodFUJI XEROX CO LTD·Filed 2005·Granted May 12, 2009·5 cites·16 claims
- 2176US8431301B2Toner 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
- 2276US4742366ACamera having means for receiving a film cassetteHYBRID CORP·Filed 1986·Granted May 3, 1988·17 cites·20 claims
- 2375US7892717B2Toner for electrostatic image development, electrostatic image developer and image forming method using the sameFUJI XEROX CO LTD·Filed 2007·Granted Feb 22, 2011·4 cites·17 claims
- 2474US7901857B2Electrostatic latent image developing toner, production method thereof, electrostatic latent image developer, and image forming methodFUJI XEROX CO LTD·Filed 2005·Granted Mar 8, 2011·4 cites·17 claims
- 2574US7432030B2Toner for developing electrostatic latent image, developer for developing electrostatic latent image, and process for producing toner for developing electrostatic latent imageFUJI XEROX CO LTD·Filed 2005·Granted Oct 7, 2008·5 cites·18 claims
- 2674US6916586B2Toner for electrostatic charged image development and process for preparing the same, as well as image forming method, image forming apparatus and toner cartridgeFUJI XEROX CO LTD·Filed 2003·Granted Jul 12, 2005·13 cites·24 claims
- 2773US7662984B2Preparation of Si—Si bond-bearing compoundsPUBLIC UNIVERSITY CORP OSAKA C·Filed 2008·Granted Feb 16, 2010·5 cites·17 claims
- 2872US8604797B2Method for determining cell number, cell number determination device, power supply device and programSENRIUCHI TADAO·Filed 2010·Granted Dec 10, 2013·2 cites·18 claims
- 2972US5698357AToner and developer for developing electrostatic latent image, and image forming process using the sameFUJI XEROX CO LTD·Filed 1996·Granted Dec 16, 1997·21 cites·14 claims
- 3072US4365326ARecord playerSONY CORP·Filed 1981·Granted Dec 21, 1982·15 cites·6 claims
- 3172US4194743ARecord playerSONY CORP·Filed 1978·Granted Mar 25, 1980·25 cites·19 claims
- 3270US8658520B2Method of manufacturing semiconductor deviceAOYAMA TOMONORI·Filed 2012·Granted Feb 25, 2014·2 cites·19 claims
- 3370US4837100AElectrophotographic developer containing positively chargeable tonerFUJI XEROX CO LTD·Filed 1987·Granted Jun 6, 1989·16 cites·13 claims
- 3469US9778913B2Method of generating uniform and independent random numbersNAKAZAWA HIROSHI·Filed 2016·Granted Oct 3, 2017·2 cites·6 claims
- 3569US7535201B2Uninterruptible power supply systemDENSEI LAMBDA KABUSHIKI KAISHA·Filed 2006·Granted May 19, 2009·8 cites·13 claims
- 3669US7396628B2Toner for electrostatic charge image developing, developer for electrostatic charge image developing, and image forming apparatusFUJI XEROX CO LTD·Filed 2005·Granted Jul 8, 2008·3 cites·10 claims
- 3769US7374854B2Image-forming method and image-forming apparatus using the sameFUJI XEROX CO LTD·Filed 2005·Granted May 20, 2008·3 cites·10 claims
- 3868US5965312AOne-component developerFUJI XEROX CO LTD·Filed 1997·Granted Oct 12, 1999·18 cites·10 claims
- 3967US6428125B1Deck apparatus equipped with a lock mechanismFUJITSU LTD·Filed 2000·Granted Aug 6, 2002·6 cites·4 claims
- 4066US12105469B2Electrostatic charge image developing toner, electrostatic charge image developer, method for producing electrostatic charge image developing toner, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 1, 2024·0 cites·18 claims
- 4165US7618761B2Toner for electrostatic image development, manufacturing method thereof, electrostatic image developer and image forming methodFUJI XEROX CO LTD·Filed 2007·Granted Nov 17, 2009·2 cites·14 claims
- 4265US5972547AElectrostatic charge image developing toner, electrostatic charge image developer, and image forming method using this developerFUJI XEROX CO LTD·Filed 1998·Granted Oct 26, 1999·16 cites·20 claims
- 4364US11675285B2Electrostatic image developing toner, method for producing electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Jun 13, 2023·0 cites·20 claims
- 4464US8443021B2Method of generating random numbersNAKAZAWA HIROSHI·Filed 2009·Granted May 14, 2013·5 cites·4 claims
- 4564US6088189ACartridge entry/exit station for a library apparatusFUJITSU LTD·Filed 1998·Granted Jul 11, 2000·19 cites·11 claims
- 4664US6001527AElectrostatic charge image developer, image formation method and image forming deviceFUJI XEROX CO LTD·Filed 1997·Granted Dec 14, 1999·15 cites·18 claims
- 4763US11586120B2Toner for developing electrostatic charge image, electrostatic charge image developer, method for producing toner for developing electrostatic charge image, toner cartridge, process cartridge, image forming apparatus, and image forming methodFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Feb 21, 2023·0 cites·20 claims
- 4862US6242146B1Carrier for electrostatic-charged image developer, developer and image forming process using the same, and carrier core material reproducing processFUJI XEROX CO LTD·Filed 2000·Granted Jun 5, 2001·8 cites·13 claims
- 4962US5863684ADeveloper, image forming method, and multicolor image forming methodFUJI XEROX CO LTD·Filed 1997·Granted Jan 26, 1999·14 cites·15 claims
- 5061US12222676B2Preparing method of electrostatic charge image developing toner, electrostatic charge image developing toner, and electrostatic charge image developerFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Feb 11, 2025·0 cites·18 claims
Showing the top 50 of 98 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →