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Eiji Yoshikawa

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  • Ishikawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Die-cushion apparatus of press machine
    • Patent number 5,339,665
    • Issue date Aug 23, 1994
    • Kabushiki Kaisha Komatsu Seisakusho
    • Eiji Yoshikawa
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Work feeder controller
    • Patent number 5,231,860
    • Issue date Aug 3, 1993
    • Kabushiki Kaisha Komatsu Seisakusho
    • Katsuji Tsuruta
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of guiding an unmanned vehicle
    • Patent number 4,866,617
    • Issue date Sep 12, 1989
    • Kabushiki Kaisha Komatsu Seisakusho
    • Tomoo Matsuda
    • G05 - CONTROLLING REGULATING