P

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 patents
US6590915B1Jul 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 patents

YOKOGAWA ELECTRIC CORP

1 patent

YUSUKE MORI

1 patent

Showing the top 50 of 84 patents by PatentIndex Score.