Inventor
KITAOKA YASUO
JP84 patents
⚠️ This page may combine multiple inventors who share the name “KITAOKA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
43 patentsUS6590915B1Jul 8, 2003
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations96
US6392979B1May 21, 2002
Optical pickup and optical disk apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations96
US6067393AMay 23, 2000
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations96
US6002515ADec 14, 1999
Method for producing polarization inversion part, optical wavelength conversion element using the same, and optical waveguide
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD75 citations96
US5936985AAug 10, 1999
Method for stabilizing output of higher harmonic waves and short wavelength laser beam source using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD54 citations96
US5835650ANov 10, 1998
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations96
US5452312ASep 19, 1995
Short-wavelength laser light source and optical information processing aparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations96
US7176115B2Feb 13, 2007
Method of manufacturing Group III nitride substrate and semiconductor device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations93
US7133428B2Nov 7, 2006
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations93
US6958967B2Oct 25, 2005
Holographic optical information recording/reproducing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US6819646B1Nov 16, 2004
Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations93
US6711183B1Mar 23, 2004
Optical wavelength conversion device, coherent light generator, and optical information processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations93
US6693936B2Feb 17, 2004
Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations93
US6501868B1Dec 31, 2002
Optical waveguide device, coherent light source, integrated unit, and optical pickup
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US6496299B2Dec 17, 2002
Method for stabilizing output of higher harmonic waves and short wavelength laser beam source using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations93
US6333943B1Dec 25, 2001
Optical device, laser beam source, laser apparatus and method of producing optical device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations93
US6323990B1Nov 27, 2001
Method for stabilizing output of higher harmonic waves and short wavelength laser beam source using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6317546B1Nov 13, 2001
Optical waveguide device, and light source device and optical apparatus including the optical waveguide device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations93
US6298075B1Oct 2, 2001
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6261858B1Jul 17, 2001
Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations93
US6069904AMay 30, 2000
Optical apparatus and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations93
US5387998AFeb 7, 1995
Shorter wavelength light generating apparatus in which coherent light is converted into shorter wavelength light
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations93
US6847660B2Jan 25, 2005
Short-wavelength laser module and method of producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US6130901AOct 10, 2000
SHG laser stabilizing control device and optical disk recording/reproduction device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92
US5301059AApr 5, 1994
Short-wavelength light generating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US7010006B2Mar 7, 2006
Light source apparatus and its control method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations91
US7435295B2Oct 14, 2008
Method for producing compound single crystal and production apparatus for use therein
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations84
US7427522B2Sep 23, 2008
Short-wavelength laser module and method of producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations84
US7416306B2Aug 26, 2008
Laser projector
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US7381268B2Jun 3, 2008
Apparatus for production of crystal of group III element nitride and process for producing crystal of group III element nitride
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US7309534B2Dec 18, 2007
Group III nitride crystals usable as group III nitride substrate, method of manufacturing the same, and semiconductor device including the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations84
US7227172B2Jun 5, 2007
Group-III-element nitride crystal semiconductor device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations84
US7221037B2May 22, 2007
Method of manufacturing group III nitride substrate and semiconductor device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
US7103076B2Sep 5, 2006
Ultrashort pulsed laser and optical head using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US6519077B1Feb 11, 2003
Optical 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 same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations84
US7339960B2Mar 4, 2008
Optical device, laser beam source, laser apparatus and method of producing optical device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations74
US7125801B2Oct 24, 2006
Method of manufacturing Group III nitride crystal substrate, etchant used in the method, Group III nitride crystal substrate, and semiconductor device including the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US7035192B2Apr 25, 2006
Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6845113B2Jan 18, 2005
Coherent light source and recording/reproducing apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6785457B2Aug 31, 2004
Optical waveguide device and coherent light source and optical apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6704337B2Mar 9, 2004
Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and production method thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US6614966B2Sep 2, 2003
Optical waveguide device integrated module and method of manufacturing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6441970B2Aug 27, 2002
Optical waveguide device, and light source device and optical apparatus including the optical waveguide device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
PANASONIC CORP
5 patentsUS8016428B2Sep 13, 2011
2-dimensional image display device or illumination device for obtaining uniform illumination and suppressing speckle noise
PANASONIC CORP23 citations93
US7948469B2May 24, 2011
Image display device and image display system
PANASONIC CORP8 citations84
US7830357B2Nov 9, 2010
Image display device and image display system
PANASONIC CORP15 citations84
US7524691B2Apr 28, 2009
Method of manufacturing group III nitride substrate
PANASONIC CORP8 citations84
US7754012B2Jul 13, 2010
Apparatus for production of crystal of group III element nitride and process for producing crystal of group III element nitride
PANASONIC CORP6 citations74
YOKOGAWA ELECTRIC CORP
1 patentYUSUKE MORI
1 patentShowing the top 50 of 84 patents by PatentIndex Score.