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Yasuyoshi Sakamoto

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disc-molding mold, molded product, molding machine and disk-shaped...
    • Patent number 7,270,535
    • Issue date Sep 18, 2007
    • Sumitomo Heavy Industries, Ltd.
    • Yuichi Inada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Moving side bush for a disc-molding die
    • Patent number D528572
    • Issue date Sep 19, 2006
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Sprue cutting punch for a disc-molding die
    • Patent number D526667
    • Issue date Aug 15, 2006
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Sprue bush for a disc-molding die
    • Patent number D521032
    • Issue date May 16, 2006
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Inner stamper holder for a disc-molding die
    • Patent number D521033
    • Issue date May 16, 2006
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Cavity ring for a disc-molding die
    • Patent number D520034
    • Issue date May 2, 2006
    • Seikoh Giken Co., Ltd.
    • Yasuyoshi Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Disc-molding mold
    • Patent number 6,558,152
    • Issue date May 6, 2003
    • Seikoh Giken Co., Ltd.
    • Katsuyuki Yasuda
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • 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
  • Information Patent Grant

    Injection molding die mounted on an injection molding machine for m...
    • Patent number 5,388,982
    • Issue date Feb 14, 1995
    • Seikoh Giken Co., Ltd.
    • Mitsuo Takahashi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents