TREA

Hirozi Watanabe

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  • Noda, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealing structure for rotary valves
    • Patent number 4,235,354
    • Issue date Nov 25, 1980
    • Kokkoman Shoyu Co., Ltd.
    • Tatuo Aonuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Sealing structure for rotary valves
    • Patent number 4,228,932
    • Issue date Oct 21, 1980
    • Kikkoman Shoyu Co., Ltd.
    • Tatuo Aonuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Sealing structure for rotary valves
    • Patent number 4,180,188
    • Issue date Dec 25, 1979
    • Kokkoman Shoyu Co., Ltd.
    • Tatuo Aonuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL