TREA

Kaoru Hatayama

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  • Nagano, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spring system
    • Patent number 4,993,376
    • Issue date Feb 19, 1991
    • Honda Giken Kogyo Kabushiki Kaisha NHK Spring Co., Ltd.
    • Taizo Fukutome
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    High strength spring and its process of manufacturing
    • Patent number 4,909,866
    • Issue date Mar 20, 1990
    • Nissan Motor Co., Ltd.
    • Makoto Abe
    • C21 - METALLURGY OF IRON