TREA

Takehiko Sumiyoshi

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polisher brush having wire-shaped grinding elements
    • Patent number 7,434,289
    • Issue date Oct 14, 2008
    • XEBEC Technology Co. Ltd.
    • Suguru Matsushita
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Abrasive
    • Patent number 6,447,562
    • Issue date Sep 10, 2002
    • XEBEC Technology Co., Ltd.
    • Takehiko Sumiyoshi
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Working tool, and material therefor
    • Patent number 6,004,198
    • Issue date Dec 21, 1999
    • Xebec Technolgy Co., Ltd.
    • Takehiko Sumiyoshi
    • D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING