TREA

Mariko Ishida

Follow

Person

  • Yokohama, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Projected beam-type smoke detector
    • Patent number 5,623,253
    • Issue date Apr 22, 1997
    • Hockiki Kabushiki Kaisha
    • Junichi Narumiya
    • G08 - SIGNALLING
  • Information Patent Grant

    Smoke sensor
    • Patent number 5,502,434
    • Issue date Mar 26, 1996
    • Hockiki Kabushiki Kaisha
    • Osami Minowa
    • G08 - SIGNALLING