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Eisaku Oka

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Miter saw
    • Patent number 8,230,768
    • Issue date Jul 31, 2012
    • Hitachi Koki Co., Ltd.
    • Hiromi Ozawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Miter saw for displaying angle of cutter blade cutting workpiece
    • Patent number 7,778,796
    • Issue date Aug 17, 2010
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Miter saw for displaying angle of cutter blade cutting workpiece
    • Patent number 7,039,548
    • Issue date May 2, 2006
    • Hitachi Koki Co., Ltd.
    • Nobuhiro Takano
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Vice device in compound miter saw
    • Patent number 6,543,323
    • Issue date Apr 8, 2003
    • Hitachi Koki Co., Ltd.
    • Toshihiko Hayashizaki
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electric plane
    • Patent number D328080
    • Issue date Jul 21, 1992
    • Hitachi Koki Haramachi Co., Ltd.
    • Eisaku Oka
    • D15 - Machines not elsewhere specified

Patents Applicationslast 30 patents