Inventor · disambiguated record
Toshifumi Yokoyama
Also filed as: YOKOYAMA TOSHIFUMI
30 granted patents·6 pending applications·337 citations·filing 1996–2023
96Inventor score
Files withDAINIPPON PRINTING CO LTD10PANASONIC CORP8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7YOKOYAMA TOSHIFUMI3FUJITSU LTD2
Top patents by PatentIndex Score
36 records- 0190US7907646B2Laser light source and display devicePANASONIC CORP·Filed 2006·Granted Mar 15, 2011·13 cites·6 claims
- 0290US7593159B2Display devicePANASONIC CORP·Filed 2004·Granted Sep 22, 2009·42 cites·9 claims
- 0389US8350789B2Image display apparatusPANASONIC CORP·Filed 2007·Granted Jan 8, 2013·21 cites·24 claims
- 0489US6599667B2Halftone phase shift photomask and blank for halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted Jul 29, 2003·41 cites·10 claims
- 0584US9485172B2Data transmitting device, data transmitting method and non-transitory computer-readable storage mediumFUJITSU LTD·Filed 2014·Granted Nov 1, 2016·8 cites·15 claims
- 0684US5723234APhase shift photomask and phase shift photomask dry etching methodDAINIPPON PRINTING CO LTD·Filed 1996·Granted Mar 3, 1998·53 cites·6 claims
- 0775US6869736B2Halftone phase shift photomask and blank for halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted Mar 22, 2005·15 cites·6 claims
- 0874US7866822B2Video projector using coherent light sourcePANASONIC CORP·Filed 2005·Granted Jan 11, 2011·4 cites·14 claims
- 0971US8440951B2Wavelength conversion laser light source having dual optical receiver and a temperature control unit, and projection display device, liquid crystal display device and laser light source provided with sameFURUYA HIROYUKI·Filed 2009·Granted May 14, 2013·3 cites·23 claims
- 1071US6519077B1Optical waveguide, optical wavelength conversion device, method for producing the same, short wavelength light generation apparatus using the same, optical information processing apparatus using the same, coherent light generation apparatus using the same, and optical system using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 11, 2003·13 cites·34 claims
- 1170US7922336B2Light source device for display device, display device, and method for adjusting image of display devicePANASONIC CORP·Filed 2006·Granted Apr 12, 2011·3 cites·25 claims
- 1267US6458496B2Blank for halftone phase shift photomask and halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2000·Granted Oct 1, 2002·12 cites·34 claims
- 1367US5811208APhase shift mask and method of producing the sameDAINIPPON PRINTING CO LTD·Filed 1996·Granted Sep 22, 1998·24 cites·5 claims
- 1466US5965301AMethod for repairing photomask by removing residual defect in said photomaskDAINIPPON PRINTING CO LTD·Filed 1997·Granted Oct 12, 1999·37 cites·11 claims
- 1564US6764792B1Halftone phase shift photomask and blanks for halftone phase shift photomask for producing itDAINIPPON PRINTING CO LTD·Filed 2000·Granted Jul 20, 2004·8 cites·14 claims
- 1664US6614966B2Optical waveguide device integrated module and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Sep 2, 2003·10 cites·61 claims
- 1762US8287131B2Wavelength conversion laserMIZUSHIMA TETSURO·Filed 2008·Granted Oct 16, 2012·1 cites·31 claims
- 1859US6740455B2PhotomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted May 25, 2004·5 cites·3 claims
- 1959US2024204023A1Solid-state imaging device and method for manufacturing the sameTOWER PARTNERS SEMICONDUCTOR CO LTD·Filed 2023·Application pending·0 cites
- 2058US6999668B2Method for manufacturing optical waveguide device, optical waveguide device, and coherent light source and optical apparatus using the optical waveguide deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 14, 2006·5 cites·14 claims
- 2156US7593151B2Display unit and scanning method thereforPANASONIC CORP·Filed 2004·Granted Sep 22, 2009·2 cites·16 claims
- 2253US2008304494A1Communication deviceFUJITSU LTD·Filed 2008·Application pending·0 cites
- 2352US7082146B2Device and method for inspecting wavelength-variable semiconductor laser, and method for inspecting coherent sourceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jul 25, 2006·1 cites·7 claims
- 2451US6979408B2Method and apparatus for photomask fabricationDAINIPPON PRINTING CO LTD·Filed 2002·Granted Dec 27, 2005·2 cites·25 claims
- 2551US5972543APhase shift mask and method of producing the sameDAINIPPON PRINTING CO LTD·Filed 1998·Granted Oct 26, 1999·11 cites·2 claims
- 2650US6621962B2Optical waveguide device integrated module and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 16, 2003·3 cites·30 claims
- 2748US2006027325A1Method and apparatus for photomask fabricationTEZUKA YOSHIHIRO·Filed 2005·Application pending·0 cites
- 2847US2010220299A1Image display deviceMIZUSHIMA TETSURO·Filed 2007·Application pending·0 cites
- 2946US8152314B2Display deviceYOKOYAMA TOSHIFUMI·Filed 2006·Granted Apr 10, 2012·0 cites·18 claims
- 3046US7830932B2Internal resonator type SHG light sourcePANASONIC CORP·Filed 2007·Granted Nov 9, 2010·0 cites·5 claims
- 3145US10734433B2Solid-state imaging deviceTOWERJAZZ PANASONIC SEMICONDUCTOR CO LTD·Filed 2018·Granted Aug 4, 2020·0 cites·13 claims
- 3242US7356056B2Coherent light source and control method thereof, and display unit and laser display using themMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Apr 8, 2008·0 cites·20 claims
- 3341US7494286B2Laser module and method for manufacturing the samePANASONIC CORP·Filed 2003·Granted Feb 24, 2009·0 cites·12 claims
- 3440US8121156B2Solid-state laser device and image display deviceYOKOYAMA TOSHIFUMI·Filed 2008·Granted Feb 21, 2012·0 cites·7 claims
- 3540US2010103088A1Solid-state laser apparatus, display apparatus and wavelength converting elementYOKOYAMA TOSHIFUMI·Filed 2008·Application pending·0 cites
- 3639US2004032884A1Device and method for inspecting wavelength-variable semiconductor laser, and method for inspecting coherent sourceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Application pending·0 cites
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