TREA

Yukihiko Usami

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fire alarm system
    • Patent number 6,081,192
    • Issue date Jun 27, 2000
    • Nohmi Bosai Ltd.
    • Kaoru Takahashi
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire alarm system
    • Patent number 5,790,018
    • Issue date Aug 4, 1998
    • Nohmi Bosai Ltd.
    • Kaoru Takahashi
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire alarm system
    • Patent number 5,650,762
    • Issue date Jul 22, 1997
    • Nohmi Bosai Ltd.
    • Kaoru Takahashi
    • G08 - SIGNALLING