TREA

Hirotoshi Ogawa

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  • Nobeoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flanged valve
    • Patent number 4,676,479
    • Issue date Jun 30, 1987
    • Asahi Yukizai Kogyo Co., Ltd.
    • Hirotoshi Ogawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gate valve
    • Patent number 4,616,804
    • Issue date Oct 14, 1986
    • Asahi Yukizai Kogyo Co., Ltd.
    • Nichiro Sano
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve assembly
    • Patent number 4,592,534
    • Issue date Jun 3, 1986
    • Asahi Yukisai Kogyo Co. Ltd.
    • Tomoyuki Ueda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Butterfly valve assembly
    • Patent number 4,266,754
    • Issue date May 12, 1981
    • Asahi Yukizai Kogyo Co., Ltd.
    • Youichi Ninomiya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...