TREA

Takatoshi Yoshioka

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat resisting steel
    • Patent number 4,585,478
    • Issue date Apr 29, 1986
    • Hitachi, Ltd.
    • Takatoshi Yoshioka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    High-strength austenitic steel
    • Patent number 4,581,067
    • Issue date Apr 8, 1986
    • Hitachi, Ltd.
    • Katsumi Iijima
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Steam turbine rotor shaft
    • Patent number 4,566,810
    • Issue date Jan 28, 1986
    • Hitachi, Ltd.
    • Takatoshi Yoshioka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotor shaft of steam turbine
    • Patent number 4,504,554
    • Issue date Mar 12, 1985
    • Hitachi, Ltd.
    • Takatoshi Yoshioka
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotor shaft and manufacturing method thereof
    • Patent number 4,497,670
    • Issue date Feb 5, 1985
    • Hitachi, Ltd.
    • Masao Siga
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Heat resisting steel
    • Patent number 4,477,280
    • Issue date Oct 16, 1984
    • Hitachi, Ltd.
    • Masao Shiga
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rotor shaft
    • Patent number 4,426,162
    • Issue date Jan 17, 1984
    • Hitachi, Ltd.
    • Keiichi Tsuchiya
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES