Inventor · disambiguated record
Yasuo Kitaoka
Also filed as: KITAOKA YASUO
84 granted patents·12 pending applications·1,192 citations·filing 1993–2015
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD64PANASONIC CORP14SATOH TAKASHI2YAMADA OSAMU2YUSUKE MORI2
Top patents by PatentIndex Score
96 records- 0194US7381268B2Apparatus for production of crystal of group III element nitride and process for producing crystal of group III element nitrideMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jun 3, 2008·12 cites·38 claims
- 0294US6590915B1Optical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 8, 2003·35 cites·8 claims
- 0393US6738398B2SHG laser light source and method of modulation for use therewithYOKOGAWA ELECTRIC CORP·Filed 2000·Granted May 18, 2004·59 cites·20 claims
- 0492US8016428B22-dimensional image display device or illumination device for obtaining uniform illumination and suppressing speckle noisePANASONIC CORP·Filed 2006·Granted Sep 13, 2011·23 cites·10 claims
- 0592US7435295B2Method for producing compound single crystal and production apparatus for use thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 14, 2008·11 cites·32 claims
- 0692US6819646B1Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 16, 2004·31 cites·4 claims
- 0791US6298075B1Optical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 2, 2001·22 cites·7 claims
- 0889US8568532B2Method for growing single crystal of group III metal nitride and reaction vessel for use in sameIWAI MAKOTO·Filed 2011·Granted Oct 29, 2013·4 cites·22 claims
- 0989US7830357B2Image display device and image display systemPANASONIC CORP·Filed 2005·Granted Nov 9, 2010·15 cites·24 claims
- 1089US7754012B2Apparatus for production of crystal of group III element nitride and process for producing crystal of group III element nitridePANASONIC CORP·Filed 2008·Granted Jul 13, 2010·6 cites·27 claims
- 1189US6392979B1Optical pickup and optical disk apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 21, 2002·56 cites·9 claims
- 1289US5452312AShort-wavelength laser light source and optical information processing aparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Sep 19, 1995·61 cites·24 claims
- 1388US5835650AOptical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 10, 1998·47 cites·15 claims
- 1487US7948469B2Image display device and image display systemPANASONIC CORP·Filed 2010·Granted May 24, 2011·8 cites·7 claims
- 1587US6847660B2Short-wavelength laser module and method of producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 25, 2005·22 cites·14 claims
- 1687US5936985AMethod for stabilizing output of higher harmonic waves and short wavelength laser beam source using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 10, 1999·54 cites·32 claims
- 1786US7133428B2Optical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 7, 2006·14 cites·2 claims
- 1886US6958967B2Holographic optical information recording/reproducing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 25, 2005·21 cites·10 claims
- 1985US6002515AMethod for producing polarization inversion part, optical wavelength conversion element using the same, and optical waveguideMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Dec 14, 1999·75 cites·43 claims
- 2084US6693936B2Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 17, 2004·28 cites·11 claims
- 2183US7419545B2Method for producing silicon carbide (SiC) single crystal and silicon carbide (SiC) single crystal obtained by such methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 2, 2008·4 cites·18 claims
- 2282US7221037B2Method of manufacturing group III nitride substrate and semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 22, 2007·15 cites·7 claims
- 2382US7010006B2Light source apparatus and its control methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 7, 2006·20 cites·15 claims
- 2480US8507364B2N-type group III nitride-based compound semiconductor and production method thereforNAGAI SEIJI·Filed 2009·Granted Aug 13, 2013·4 cites·11 claims
- 2580US7416306B2Laser projectorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 26, 2008·14 cites·10 claims
- 2680US7288152B2Method of manufacturing GaN crystals and GaN crystal substrate, GaN crystals and GaN crystal substrate obtained by the method, and semiconductor device including the sameYUSUKE MORI·Filed 2004·Granted Oct 30, 2007·31 cites·28 claims
- 2780US6501868B1Optical waveguide device, coherent light source, integrated unit, and optical pickupMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 31, 2002·21 cites·69 claims
- 2879US7103076B2Ultrashort pulsed laser and optical head using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 5, 2006·12 cites·7 claims
- 2979US6496299B2Method for stabilizing output of higher harmonic waves and short wavelength laser beam source using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 17, 2002·14 cites·3 claims
- 3078US6261858B1Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 17, 2001·18 cites·10 claims
- 3177US7749921B2Semiconductor element, method for manufacturing the semiconductor element, electronic device and method for manufacturing the electronic devicePANASONIC CORP·Filed 2007·Granted Jul 6, 2010·2 cites·27 claims
- 3277US7176115B2Method of manufacturing Group III nitride substrate and semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Feb 13, 2007·19 cites·58 claims
- 3377US7035192B2Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 25, 2006·8 cites·4 claims
- 3477US6067393AOptical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 23, 2000·28 cites·28 claims
- 3575US7427522B2Short-wavelength laser module and method of producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 23, 2008·10 cites·6 claims
- 3675US5387998AShorter wavelength light generating apparatus in which coherent light is converted into shorter wavelength lightMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Feb 7, 1995·33 cites·33 claims
- 3774US8317333B2Method and device for converting an emission beam from a laser light source into 2-dimensional lightKASAZUMI KENICHI·Filed 2011·Granted Nov 27, 2012·3 cites·3 claims
- 3874US6130901ASHG laser stabilizing control device and optical disk recording/reproduction deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Oct 10, 2000·39 cites·25 claims
- 3973US6785457B2Optical waveguide device and coherent light source and optical apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 31, 2004·11 cites·12 claims
- 4072US7227172B2Group-III-element nitride crystal semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 5, 2007·14 cites·20 claims
- 4172US6317546B1Optical waveguide device, and light source device and optical apparatus including the optical waveguide deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 13, 2001·19 cites·31 claims
- 4271US6519077B1Optical 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
- 4370US8574361B2Group-III element nitride crystal producing method and group-III element nitride crystalYAMADA OSAMU·Filed 2008·Granted Nov 5, 2013·2 cites·12 claims
- 4469US7570677B2Optical device, laser beam source, laser apparatus and method of producing optical devicePANASONIC CORP·Filed 2007·Granted Aug 4, 2009·1 cites·2 claims
- 4569US6845113B2Coherent light source and recording/reproducing apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 18, 2005·7 cites·22 claims
- 4669US6069904AOptical apparatus and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted May 30, 2000·21 cites·10 claims
- 4768US8187507B2GaN crystal producing method, GaN crystal, GaN crystal substrate, semiconductor device and GaN crystal producing apparatusMORI YUSUKE·Filed 2007·Granted May 29, 2012·3 cites·12 claims
- 4868US7339960B2Optical device, laser beam source, laser apparatus and method of producing optical deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 4, 2008·4 cites·8 claims
- 4967US8501141B2Method for producing group III nitride semiconductorSATO TAKAYUKI·Filed 2010·Granted Aug 6, 2013·2 cites·16 claims
- 5067US7309534B2Group III nitride crystals usable as group III nitride substrate, method of manufacturing the same, and semiconductor device including the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Dec 18, 2007·10 cites·55 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →