TREA

Iwao Yokoyama

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  • Kitaibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piping branch structure
    • Patent number 4,993,454
    • Issue date Feb 19, 1991
    • Hitachi, Ltd.
    • Yasuhiro Masuhara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Nuclear reactor
    • Patent number 4,663,116
    • Issue date May 5, 1987
    • Hitachi, Ltd.
    • Yasuhiro Masuhara
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING