TREA

Hiroshi Hagiwara

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polishing device
    • Patent number 5,010,692
    • Issue date Apr 30, 1991
    • Sintobrator, Ltd.
    • Takao Ishida
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Polishing device
    • Patent number 4,839,992
    • Issue date Jun 20, 1989
    • Sintobrator, Ltd.
    • Takeo Ishida
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Polishing device
    • Patent number 4,837,979
    • Issue date Jun 13, 1989
    • Sintobrator, Ltd.
    • Takao Ishida
    • B24 - GRINDING POLISHING