TREA

Yoshio Tokunaga

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  • Musashino, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Jig driving apparatus
    • Patent number 4,013,281
    • Issue date Mar 22, 1977
    • Citizen Watch Co., Ltd.
    • Yoshio Tokunaga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Transfer unit in a transfer machine
    • Patent number 4,006,829
    • Issue date Feb 8, 1977
    • Citizen Watch Co., Ltd.
    • Yoshio Tokunaga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Work-holding apparatus
    • Patent number 3,993,297
    • Issue date Nov 23, 1976
    • Citizen Watch Co., Ltd.
    • Yoshio Tokunaga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Contour grinders
    • Patent number 3,942,287
    • Issue date Mar 9, 1976
    • Citizen Watch Company, Ltd.
    • Yoshio Tokunaga
    • B24 - GRINDING POLISHING