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Izumi Takaya

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Patents Grantslast 30 patents

  • Information Patent Grant

    Discharge centering lamp lighting device
    • Patent number 7,531,965
    • Issue date May 12, 2009
    • Ushio Denki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    High pressure discharge lamp lighting device
    • Patent number 7,439,691
    • Issue date Oct 21, 2008
    • Ushiodenki Kabushiki Kaisha
    • Katsumi Sugaya
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Discharge lamp lighting apparatus
    • Patent number 7,239,090
    • Issue date Jul 3, 2007
    • Ushio Denki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Lamp lighting apparatus for a discharge lamp
    • Patent number 6,946,807
    • Issue date Sep 20, 2005
    • Ushio Denki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Light source device
    • Patent number 6,734,643
    • Issue date May 11, 2004
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Light source device
    • Patent number 6,661,184
    • Issue date Dec 9, 2003
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    High-pressure mercury lamp luminescent device and means of ignition
    • Patent number 6,597,118
    • Issue date Jul 22, 2003
    • Ushiodenki Kabushiki Kaisha
    • Tomoyoshi Arimoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Light source device
    • Patent number 6,552,502
    • Issue date Apr 22, 2003
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    Discharge centering lamp lighting device
    • Publication number 20070285030
    • Publication date Dec 13, 2007
    • Ushio Denki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HIGH PRESSURE DISCHARGE LAMP LIGHTING DEVICE
    • Publication number 20070262729
    • Publication date Nov 15, 2007
    • Ushiodenki Kabushiki Kaisha
    • Katsumi SUGAYA
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Discharge lamp lighting apparatus
    • Publication number 20070085486
    • Publication date Apr 19, 2007
    • Ushio Denki Kabushiki Kaisha
    • Masashi Okamoto
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Lamp lighting apparatus
    • Publication number 20040119425
    • Publication date Jun 24, 2004
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Light source device
    • Publication number 20030052622
    • Publication date Mar 20, 2003
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Light source device
    • Publication number 20030001515
    • Publication date Jan 2, 2003
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Light source device
    • Publication number 20020130626
    • Publication date Sep 19, 2002
    • Ushiodenki Kabushiki Kaisha
    • Masashi Okamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    High-pressure mercury lamp luminescent device and means of ignition
    • Publication number 20020047610
    • Publication date Apr 25, 2002
    • Tomoyoshi Arimoto
    • H01 - BASIC ELECTRIC ELEMENTS