Inventor · disambiguated record
Masahiko Nakazawa
Also filed as: NAKAZAWA MASAHIKO
33 granted patents·13 pending applications·207 citations·filing 1988–2023
96Inventor score
Top patents by PatentIndex Score
46 records- 0194US11506294B2Valve device, method for replacing valve body unit of valve device, and valve device assembly methodFUJIKIN KK·Filed 2021·Granted Nov 22, 2022·4 cites·9 claims
- 0293US10150877B2Electrophoretic dispersion liquid, method of manufacturing electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatusE INK CORP·Filed 2016·Granted Dec 11, 2018·3 cites·5 claims
- 0392US9645467B2Electrophoretic particles, electrophoretic dispersion liquid, display sheet, display device, and electronic equipmentSEIKO EPSON CORP·Filed 2014·Granted May 9, 2017·11 cites·19 claims
- 0491US10113072B2Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatusSEIKO EPSON CORP·Filed 2016·Granted Oct 30, 2018·3 cites·20 claims
- 0590US9804472B2Electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatusSEIKO EPSON CORP·Filed 2016·Granted Oct 31, 2017·3 cites·19 claims
- 0689US11359730B2Valve deviceFUJIKIN KK·Filed 2021·Granted Jun 14, 2022·2 cites·2 claims
- 0789US11052660B2Liquid absorber and liquid ejection apparatusSEIKO EPSON CORP·Filed 2020·Granted Jul 6, 2021·2 cites·10 claims
- 0885US10597541B2Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatusE INK CORP·Filed 2018·Granted Mar 24, 2020·1 cites·19 claims
- 0983US4804164AFlow control deviceFUJI KINZOKU KOSAKU KK·Filed 1988·Granted Feb 14, 1989·43 cites·2 claims
- 1081US9952461B2Display deviceNIPPON SEIKI CO LTD·Filed 2015·Granted Apr 24, 2018·2 cites·6 claims
- 1178US9323126B2Electrophoretic particles, method for manufacturing electrophoretic particles, electrophoresis dispersion, display device, and electronic apparatusSEIKO EPSON CORP·Filed 2014·Granted Apr 26, 2016·2 cites·15 claims
- 1277US5178366AValve sealMASAKO KIYOHARA·Filed 1992·Granted Jan 12, 1993·41 cites·10 claims
- 1376US11242934B2Valve deviceFUJIKIN KK·Filed 2018·Granted Feb 8, 2022·2 cites·7 claims
- 1473US11859346B2Formed body producing methodSEIKO EPSON CORP·Filed 2022·Granted Jan 2, 2024·0 cites·7 claims
- 1573US10969647B2Electrophoretic particle, method of manufacturing electrophoretic particle, electrophoresis dispersion liquid, electrophoresis sheet, electrophoresis device, and electronic apparatusE INK CORP·Filed 2016·Granted Apr 6, 2021·1 cites·14 claims
- 1672US12358255B2Method for manufacturing molded bodySEIKO EPSON CORP·Filed 2023·Granted Jul 15, 2025·0 cites·7 claims
- 1772US10968354B2Electrophoretic dispersion liquid, production method of electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device and electronic apparatusE INK CORP·Filed 2018·Granted Apr 6, 2021·0 cites·3 claims
- 1870US2023174748A1Method for producing shaped article and binderSEIKO EPSON CORP·Filed 2022·Application pending·0 cites
- 1969US2019256662A1Method of manufacturing electrophoretic particle, electrophoretic particle, electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatusE INK CORP·Filed 2019·Application pending·0 cites
- 2065US11046079B2Liquid absorber and liquid ejection apparatusSEIKO EPSON CORP·Filed 2020·Granted Jun 29, 2021·0 cites·12 claims
- 2164US12138865B2Method for manufacturing molded productSEIKO EPSON CORP·Filed 2022·Granted Nov 12, 2024·0 cites·10 claims
- 2264US2024003090A1Method for manufacturing molded bodySEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 2361US11802377B2Fibrous body manufacturing method and fibrous body manufacturing apparatusSEIKO EPSON CORP·Filed 2021·Granted Oct 31, 2023·0 cites·11 claims
- 2460US10323128B2Method of manufacturing electrophoretic particle, electrophoretic particle, electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatusE INK CORP·Filed 2016·Granted Jun 18, 2019·0 cites·9 claims
- 2559US5398725AFlow control deviceFUJIKIN KK·Filed 1993·Granted Mar 21, 1995·24 cites·7 claims
- 2659US2023116888A1Binding material and method for manufacturing molded bodySEIKO EPSON CORP·Filed 2022·Application pending·0 cites
- 2758US2021047763A1Bonding material and method for manufacturing the same and fiber molded article and method for manufacturing the sameSEIKO EPSON CORP·Filed 2020·Application pending·0 cites
- 2858US2024001640A1Method for manufacturing molded bodySEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 2955US2021164167A1Fiber assembly-forming method, fiber assembly-forming apparatus, and sheetSEIKO EPSON CORP·Filed 2020·Application pending·0 cites
- 3052US9645466B2Electrophoretic particles, electrophoretic dispersion liquid, display sheet, display device, and electronic equipmentSEIKO EPSON CORP·Filed 2014·Granted May 9, 2017·0 cites·15 claims
- 3152US2022010081A1Binder, and apparatus and method for forming fiber-based itemSEIKO EPSON CORP·Filed 2021·Application pending·0 cites
- 3251US2021301469A1Fiber-formed body producing raw material and fiber-formed body producing methodSEIKO EPSON CORP·Filed 2021·Application pending·0 cites
- 3349US11231121B2Actuator, valve device, and fluid control apparatusFUJIKIN KK·Filed 2021·Granted Jan 25, 2022·0 cites·5 claims
- 3449US5967489AFluid control apparatusAERA JAPAN LTD·Filed 1997·Granted Oct 19, 1999·19 cites·8 claims
- 3547US9958753B2Electrophoresis dispersion liquidSEIKO EPSON CORP·Filed 2017·Granted May 1, 2018·0 cites·20 claims
- 3646US7180196B2Semiconductor device mounting method, semiconductor device mounting structure, electro-optical device, electro-optical device manufacturing method and electronic deviceSEIKO EPSON CORP·Filed 2003·Granted Feb 20, 2007·2 cites·2 claims
- 3746US5379982AControl valveFUJIKIN KK·Filed 1994·Granted Jan 10, 1995·12 cites·7 claims
- 3842US11067195B2Actuator, valve device, and fluid control apparatusFUJIKIN KK·Filed 2020·Granted Jul 20, 2021·0 cites·8 claims
- 3942US5429484ALiquid feed pump particularly used for liquid medicine and liquid feed apparatus for filling of liquid medicineEISAI CO LTD·Filed 1993·Granted Jul 4, 1995·11 cites·6 claims
- 4041US2007222777A1Electrooptic device, wiring board, method for manufacturing electrooptic device, and electronic deviceSANYO EPSON IMAGING DEVICES CO·Filed 2007·Application pending·0 cites
- 4141US2017184939A1Electrophoretic particle, electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device, and electronic apparatusSEIKO EPSON CORP·Filed 2016·Application pending·0 cites
- 4240US5161571ACheck valveMASAKO KIYOHARA·Filed 1991·Granted Nov 10, 1992·10 cites·2 claims
- 4340US2006044505A1Electro-optical device and electronic apparatusNAKAZAWA MASAHIKO·Filed 2005·Application pending·0 cites
- 4435US2015205180A1Method of manufacturing electrophoresis dispersion liquid, electrophoresis dispersion liquid, display device and electronic apparatusSEIKO EPSON CORP·Filed 2015·Application pending·0 cites
- 4533US5427357AControl valveFUJIKIN KK·Filed 1994·Granted Jun 27, 1995·5 cites·6 claims
- 4630US5107885ACheck valveKYOHARA MASAKO·Filed 1991·Granted Apr 28, 1992·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →