TREA

Goro Yoneyama

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  • Kawagoe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for manufacturing polyurethane foam slabs in a batch
    • Patent number 4,666,393
    • Issue date May 19, 1987
    • Human Industry Corporation
    • Sadao Kumasaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mold equipment
    • Patent number 4,352,651
    • Issue date Oct 5, 1982
    • Toyo Rubber Chemical Industrial Corp.
    • Sadao Kumasaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mold equipment
    • Patent number 4,325,688
    • Issue date Apr 20, 1982
    • Toyo Rubber Chemical Industrial Corporation
    • Sadao Kumasaka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL