TREA

Yukio Terunuma

Follow

Person

  • Ibaraki, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Vibration drill unit
    • Patent number 8,672,049
    • Issue date Mar 18, 2014
    • Hitachi Koki Co., Ltd.
    • Junichi Tokairin
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Drilling system including drilling machine and compressor
    • Patent number 7,556,457
    • Issue date Jul 7, 2009
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Oda
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Impact hammer drill
    • Patent number 7,306,047
    • Issue date Dec 11, 2007
    • Hitachi Koki Co., Ltd.
    • Hiroyuki Oda
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Saber saw having blade tiltable toward workpiece relative to saw bo...
    • Patent number 7,181,850
    • Issue date Feb 27, 2007
    • Hitachi Koki Co., Ltd.
    • Toshihiko Tachibana
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Operation mode switching mechanism for a hammer drill
    • Patent number 6,557,648
    • Issue date May 6, 2003
    • Hitachi Koki Co., Ltd.
    • Toshihiro Ichijyou
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Operating mode switching apparatus for a hammer drill
    • Patent number 6,035,945
    • Issue date Mar 14, 2000
    • Hitachi Koki Co., Ltd.
    • Toshihiro Ichijyou
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Impact drill
    • Patent number 5,025,869
    • Issue date Jun 25, 1991
    • Hitachi Koki Company, Limited
    • Yukio Terunuma
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents