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Masami Yoshikawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Door device of elevator
    • Patent number 7,644,808
    • Issue date Jan 12, 2010
    • Mitsubishi Denki Kabushiki Kaisha
    • Masami Yoshikawa
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door structure and method of adjusting the same
    • Patent number 5,636,715
    • Issue date Jun 10, 1997
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshikatsu Hayashi
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator landing door apparatus
    • Patent number 5,165,505
    • Issue date Nov 24, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshikatsu Hayashi
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator landing door apparatus
    • Patent number 5,156,237
    • Issue date Oct 20, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Yoshikatsu Hayashi
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    Door Device of Elevator
    • Publication number 20080230323
    • Publication date Sep 25, 2008
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • Masami Yoshikawa
    • B66 - HOISTING LIFTING HAULING