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Kazuhisa Takagi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Semiconductor package
    • Patent number 10,903,619
    • Issue date Jan 26, 2021
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for manufacturing optical device
    • Patent number 10,063,031
    • Issue date Aug 28, 2018
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical module
    • Patent number 9,698,566
    • Issue date Jul 4, 2017
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical semiconductor device
    • Patent number 9,147,997
    • Issue date Sep 29, 2015
    • Mitsubishi Electric Corporation
    • Takeshi Saito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical semiconductor device
    • Patent number 9,042,008
    • Issue date May 26, 2015
    • Mitsubishi Electric Corporation
    • Takeshi Saito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical semiconductor device
    • Patent number 8,780,949
    • Issue date Jul 15, 2014
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical device
    • Patent number 8,724,933
    • Issue date May 13, 2014
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical modulator
    • Patent number 8,655,116
    • Issue date Feb 18, 2014
    • Mitsubishi Electric Corporation
    • Eitaro Ishimura
    • G02 - OPTICS
  • Information Patent Grant

    Semiconductor optical integrated element
    • Patent number 8,526,478
    • Issue date Sep 3, 2013
    • Mitsubishi Electric Corporation
    • Eitaro Ishimura
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Method of manufacturing semiconductor optical element
    • Patent number 8,279,905
    • Issue date Oct 2, 2012
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Semiconductor optical element
    • Patent number 8,179,942
    • Issue date May 15, 2012
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Semiconductor laser
    • Patent number 8,144,741
    • Issue date Mar 27, 2012
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor optical element
    • Patent number 8,068,527
    • Issue date Nov 29, 2011
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Semiconductor laser
    • Patent number 7,773,651
    • Issue date Aug 10, 2010
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Gain-coupled distributed feedback semiconductor laser having an imp...
    • Patent number 7,773,652
    • Issue date Aug 10, 2010
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor optical element
    • Patent number 7,706,422
    • Issue date Apr 27, 2010
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor laser
    • Patent number 7,397,833
    • Issue date Jul 8, 2008
    • Mitsubishi Electric Corporation
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical wavelength converter
    • Patent number 7,365,904
    • Issue date Apr 29, 2008
    • Mitsubishi Denki Kabushiki Kaisha
    • Keisuke Matsumoto
    • G02 - OPTICS
  • Information Patent Grant

    Semiconductor laser device
    • Patent number 7,218,658
    • Issue date May 15, 2007
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor optical integrated circuit
    • Patent number 7,177,337
    • Issue date Feb 13, 2007
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical wavelength converter
    • Patent number 7,092,145
    • Issue date Aug 15, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • G02 - OPTICS
  • Information Patent Grant

    Semiconductor optical device
    • Patent number 6,999,485
    • Issue date Feb 14, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor optical waveguide device including s-shaped waveguides
    • Patent number 6,993,213
    • Issue date Jan 31, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • G02 - OPTICS
  • Information Patent Grant

    Semiconductor optical device
    • Patent number 6,845,205
    • Issue date Jan 18, 2005
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical modulator and photonic semiconductor device
    • Patent number 6,778,751
    • Issue date Aug 17, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Hitoshi Tada
    • G02 - OPTICS
  • Information Patent Grant

    Semiconductor optical device
    • Patent number 6,777,718
    • Issue date Aug 17, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor optical modulator and semiconductor optical device
    • Patent number 6,760,141
    • Issue date Jul 6, 2004
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Semiconductor device
    • Patent number 6,667,529
    • Issue date Dec 23, 2003
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Light modulator and integrated semiconductor laser-light modulator
    • Patent number 6,542,525
    • Issue date Apr 1, 2003
    • Mitsubishi Denki Kabushiki Kaisha
    • Keisuke Matsumoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of manufacturing an integrated semiconductor laser-modulator...
    • Patent number 6,455,338
    • Issue date Sep 24, 2002
    • Mitsubishi Denki Kabushiki Kaisha
    • Kazuhisa Takagi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents