Inventor · disambiguated record
Toshiaki Hashizume
Also filed as: HASHIZUME TOSHIAKI
88 granted patents·15 pending applications·1,284 citations·filing 1992–2024
99Inventor score
Files withSEIKO EPSON CORP95FURUKAWA ELECTRIC CO LTD3AKIYAMA KOICHI1ARAKAWA OSAMU1FURAKAWA ELECTRIC CO LTD1
Top patents by PatentIndex Score
103 records- 0191US6273569B1Illuminating optical system and projectorSEIKO EPSON CORP·Filed 1999·Granted Aug 14, 2001·39 cites·16 claims
- 0290US11572502B2Wavelength conversion element, light source device, projector, and method of manufacturing wavelength conversion elementSEIKO EPSON CORP·Filed 2020·Granted Feb 7, 2023·2 cites·14 claims
- 0390US5865521AProjection-type display apparatusSEIKO EPSON CORP·Filed 1997·Granted Feb 2, 1999·92 cites·19 claims
- 0489US7150543B2Optical modulator holder, optical device, and projectorSEIKO EPSON CORP·Filed 2005·Granted Dec 19, 2006·13 cites·24 claims
- 0589US5743610AProjection-type display apparatusSEIKO EPSON CORP·Filed 1996·Granted Apr 28, 1998·102 cites·20 claims
- 0688US11237469B2Wavelength conversion element, light source device, and projectorSEIKO EPSON CORP·Filed 2020·Granted Feb 1, 2022·2 cites·19 claims
- 0788US7008180B2Axial-flow fan and projector provided with the sameSEIKO EPSON CORP·Filed 2003·Granted Mar 7, 2006·26 cites·38 claims
- 0888US6935753B2ProjectorSEIKO EPSON CORP·Filed 2002·Granted Aug 30, 2005·33 cites·28 claims
- 0987US7549771B2Light source device and projectorSEIKO EPSON CORP·Filed 2007·Granted Jun 23, 2009·10 cites·10 claims
- 1087US6000802AProjection-type display apparatusSEIKO EPSON CORP·Filed 1998·Granted Dec 14, 1999·52 cites·19 claims
- 1187US5555622AMethod of manufacturing a heat transfer small size tubeFURUKAWA ELECTRIC CO LTD·Filed 1995·Granted Sep 17, 1996·52 cites·6 claims
- 1286US11172176B2Wavelength conversion element, light source device, projector, and method of manufacturing wavelength conversion elementSEIKO EPSON CORP·Filed 2020·Granted Nov 9, 2021·2 cites·8 claims
- 1386US6854848B2Optical device and projectorSEIKO EPSON CORP·Filed 2002·Granted Feb 15, 2005·30 cites·73 claims
- 1486US5418586AProjection type liquid crystal projectorSEIKO EPSON CORP·Filed 1992·Granted May 23, 1995·55 cites·25 claims
- 1585USRE42740EProjectorSEIKO EPSON CORP·Filed 2007·Granted Sep 27, 2011·6 cites·44 claims
- 1683US6342971B1Projector using a light-selective prismSEIKO EPSON CORP·Filed 2000·Granted Jan 29, 2002·21 cites·1 claims
- 1782US6913074B2Method of making an internal grooved tubeFURUKAWA ELECTRIC CO LTD·Filed 2003·Granted Jul 5, 2005·11 cites·4 claims
- 1882US5651599AProjection type liquid crystal projectorSEIKO EPSON CORP·Filed 1995·Granted Jul 29, 1997·53 cites·4 claims
- 1981USRE38084EProjectorSEIKO EPSON CORP·Filed 2001·Granted Apr 22, 2003·16 cites·46 claims
- 2081US5988818AProjection type liquid crystal projectorSEIKO EPSON CORP·Filed 1997·Granted Nov 23, 1999·50 cites·10 claims
- 2180US9475983B2Fluorescence light emitting element comprising a phosphor layer including phosphors and a binder made of an inorganic materialSEIKO EPSON CORP·Filed 2014·Granted Oct 25, 2016·3 cites·18 claims
- 2279US6523958B2Optical component and projector using the sameSEIKO EPSON CORP·Filed 2001·Granted Feb 25, 2003·20 cites·23 claims
- 2378US10721446B2Wavelength conversion element, light source apparatus, and projectorSEIKO EPSON CORP·Filed 2018·Granted Jul 21, 2020·1 cites·8 claims
- 2478US9964842B2Light source apparatus and projectorSEIKO EPSON CORP·Filed 2015·Granted May 8, 2018·2 cites·12 claims
- 2578US8023186B2ScreenSEIKO EPSON CORP·Filed 2009·Granted Sep 20, 2011·5 cites·16 claims
- 2678US6935745B1Optical device, method for manufacturing optical device, and projectorSEIKO EPSON CORP·Filed 2002·Granted Aug 30, 2005·23 cites·84 claims
- 2778US6833953B2Polarizer and optical device using the polarizerSEIKO EPSON CORP·Filed 2002·Granted Dec 21, 2004·16 cites·41 claims
- 2878US6471358B1Lighting device and projectorSEIKO EPSON CORP·Filed 2000·Granted Oct 29, 2002·17 cites·8 claims
- 2978US6109751AProjector and lighting optical system thereforSEIKO EPSON CORP·Filed 1997·Granted Aug 29, 2000·15 cites·36 claims
- 3076US8780444B2Screen and projection systemARAKAWA OSAMU·Filed 2012·Granted Jul 15, 2014·3 cites·21 claims
- 3176US6394607B1Polarized light separation device, method of fabricating the same and projection display apparatus using the polarized light separation deviceSEIKO EPSON CORP·Filed 1997·Granted May 28, 2002·50 cites·36 claims
- 3275US7559675B2Light source device and projectorSEIKO EPSON CORP·Filed 2007·Granted Jul 14, 2009·3 cites·16 claims
- 3375US7159990B2Method of manufacturing reflective mirror, illumination device, and projectorSEIKO EPSON CORP·Filed 2004·Granted Jan 9, 2007·7 cites·17 claims
- 3474USRE41680EProjectorSEIKO EPSON CORP·Filed 2007·Granted Sep 14, 2010·2 cites·63 claims
- 3574US6690521B2Light-selective prism, projection display apparatus using the same, and method of manufacturing light-selective prismSEIKO EPSON CORP·Filed 2002·Granted Feb 10, 2004·12 cites·6 claims
- 3673US10379284B2Light source device and projectorSEIKO EPSON CORP·Filed 2018·Granted Aug 13, 2019·1 cites·18 claims
- 3773US10101645B2Wavelength conversion element, light source device, and projectorSEIKO EPSON CORP·Filed 2017·Granted Oct 16, 2018·1 cites·19 claims
- 3873US6843277B2Duct and electronic apparatus having the ductSEIKO EPSON CORP·Filed 2002·Granted Jan 18, 2005·29 cites·36 claims
- 3973US6811262B2Projector comprising an optical component having a rock crystal memberSEIKO EPSON CORP·Filed 2004·Granted Nov 2, 2004·8 cites·17 claims
- 4073US6536901B2ProjectorSEIKO EPSON CORP·Filed 2001·Granted Mar 25, 2003·12 cites·6 claims
- 4172US10942433B2Light source device and projectorSEIKO EPSON CORP·Filed 2019·Granted Mar 9, 2021·1 cites·16 claims
- 4272US8714747B2Projector having a first light separation optical system and a second light separation optical systemAKIYAMA KOICHI·Filed 2012·Granted May 6, 2014·2 cites·12 claims
- 4372US7085034B2Optical device and projectorSEIKO EPSON CORP·Filed 2005·Granted Aug 1, 2006·6 cites·15 claims
- 4472US6154320APolarizing conversion device, polarizing illuminations device, and display apparatus and projector using the devicesSEIKO EPSON CORP·Filed 1999·Granted Nov 28, 2000·35 cites·11 claims
- 4572US6092901APolarizing illumination device and projection display deviceSEIKO EPSON CORP·Filed 1998·Granted Jul 25, 2000·43 cites·16 claims
- 4671US10261402B2Light source device and projectorSEIKO EPSON CORP·Filed 2018·Granted Apr 16, 2019·1 cites·20 claims
- 4771US6470723B2Apparatus for manufacturing internal grooved tubeFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Oct 29, 2002·7 cites·1 claims
- 4870US7364311B2Method of manufacturing reflective mirror, illumination device, and projectorSEIKO EPSON CORP·Filed 2006·Granted Apr 29, 2008·2 cites·6 claims
- 4970US6633435B2Illumination optical system and projector comprising the sameSEIKO EPSON CORP·Filed 2001·Granted Oct 14, 2003·9 cites·14 claims
- 5069US11868034B2Phosphor particle, wavelength conversion element, light source device, method of manufacturing phosphor particle, method of manufacturing wavelength conversion element, and projectorSEIKO EPSON CORP·Filed 2021·Granted Jan 9, 2024·0 cites·13 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
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