TREA

Keiko Ozawa

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  • Chiba-Ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Elevator door apparatus
    • Patent number 6,374,952
    • Issue date Apr 23, 2002
    • Otis Elevator Company
    • Hideki Itoh
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    Elevator car frame with integral controller
    • Publication number 20040035647
    • Publication date Feb 26, 2004
    • Otis Elevator Company
    • Hideki Arai
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Elevator door apparatus
    • Publication number 20010003319
    • Publication date Jun 14, 2001
    • Hideki Itoh
    • B66 - HOISTING LIFTING HAULING