TREA

Shigeru Okubo

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  • Mitaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wire cleaning apparatus
    • Patent number 6,261,166
    • Issue date Jul 17, 2001
    • Super Silicon Crystal Research Institute Corp.
    • Keiichiro Asakawa
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Wire saw control method and wire saw
    • Patent number 6,178,961
    • Issue date Jan 30, 2001
    • Tokyo Seimitsu Co., Ltd.
    • Shinji Nagatsuka
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Wire saw
    • Patent number 5,896,851
    • Issue date Apr 27, 1999
    • Tokyo Seimitsu Co., Ltd.
    • Shozo Katamachi
    • B28 - WORKING CEMENT, CLAY, OR STONE