TREA

Norio Watanabe

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Washing apparatus and washing method
    • Patent number 5,851,305
    • Issue date Dec 22, 1998
    • Zenken Co., Ltd.
    • Yousuke Yamada
    • B08 - CLEANING
  • Information Patent Grant

    Ceramics-coated heat resisting alloy member
    • Patent number 5,209,645
    • Issue date May 11, 1993
    • Hitachi, Ltd.
    • Yoshitaka Kojima
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Jig for fixing bearing
    • Patent number 4,984,345
    • Issue date Jan 15, 1991
    • Tsukishima Kikai Co., Ltd.
    • Michinori Sawada
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ceramics-coated heat resisting alloy member
    • Patent number 4,966,820
    • Issue date Oct 30, 1990
    • Hitachi, Ltd.
    • Yoshitaka Kojima
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Method of improving SVI of mixed liquor in aeration tank
    • Patent number 4,790,939
    • Issue date Dec 13, 1988
    • Shinryo Corporation
    • Akira Suzuki
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sludge concentration method
    • Patent number 4,626,356
    • Issue date Dec 2, 1986
    • Shinryo Air Conditioning Co., Ltd.
    • Akira Suzuki
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Activated-sludge process for wastewater treatment
    • Patent number 4,500,427
    • Issue date Feb 19, 1985
    • Shinryo Air Conditioning Co., Ltd.
    • Akira Suzuki
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE