TREA

Eiji Hirooka

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fire alarming system
    • Patent number 6,195,003
    • Issue date Feb 27, 2001
    • Nohmi Bosai Ltd.
    • Nobuyuki Ichikawa
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire alarming system
    • Patent number 6,091,328
    • Issue date Jul 18, 2000
    • Nohmi Bosai Ltd.
    • Nobuyuki Ichikawa
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire detector
    • Patent number 5,986,556
    • Issue date Nov 16, 1999
    • Nohmi Bosai Ltd.
    • Mikio Mochizuki
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire detector
    • Patent number 5,872,517
    • Issue date Feb 16, 1999
    • Nohmi Bosai Ltd.
    • Mikio Mochizuki
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire detector
    • Patent number 5,670,948
    • Issue date Sep 23, 1997
    • Nohmi Bosai Ltd.
    • Mikio Mochizuki
    • G08 - SIGNALLING
  • Information Patent Grant

    Fire detector having optic base clamping optic elements to a circui...
    • Patent number 5,486,816
    • Issue date Jan 23, 1996
    • Nohmi Bosai Ltd.
    • Yasuo Ariga
    • G08 - SIGNALLING