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Takashi Oka

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  • Shimonoseki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double-walled damping structure
    • Patent number 6,708,626
    • Issue date Mar 23, 2004
    • Kobe Steel, Ltd.
    • Hiroki Ueda
    • B61 - RAILWAYS
  • Information Patent Grant

    Energy absorbing member
    • Patent number 6,258,465
    • Issue date Jul 10, 2001
    • Kabushiki Kaisha Kobe Seiko Sho
    • Takashi Oka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Double-walled damping structure
    • Publication number 20030000417
    • Publication date Jan 2, 2003
    • Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    • Hiroki Ueda
    • B61 - RAILWAYS