TREA

Chang-Ming Zhu

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Buffer device for elevator
    • Patent number 7,287,626
    • Issue date Oct 30, 2007
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Kigawa
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    Buffer device for elevator
    • Publication number 20060249334
    • Publication date Nov 9, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Kigawa
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Buffer device for elevator
    • Publication number 20060231349
    • Publication date Oct 19, 2006
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Kigawa
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Buffer device for elevator
    • Publication number 20030217895
    • Publication date Nov 27, 2003
    • Mitsubishi Denki Kabushiki Kaisha
    • Hiroshi Kigawa
    • B66 - HOISTING LIFTING HAULING