TREA

Koichi Koizumi

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary table unit
    • Patent number 4,656,951
    • Issue date Apr 14, 1987
    • Citizen Watch Co., Ltd.
    • Sosaku Kimura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for producing a grinding wheel by electroplating
    • Patent number 4,528,074
    • Issue date Jul 9, 1985
    • Nissin Machine Works, Limited
    • Masakazu Miyashita
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Composite guide mechanism
    • Patent number 4,523,410
    • Issue date Jun 18, 1985
    • Citizen Watch Co., Ltd.
    • Junichi Yoshioka
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL