TREA

Akira Hatano

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disc molding die
    • Patent number 5,773,040
    • Issue date Jun 30, 1998
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Disc molding die
    • Patent number 5,693,348
    • Issue date Dec 2, 1997
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL