TREA

Hiroshi Ooishi

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic power steering apparatus
    • Patent number 4,955,446
    • Issue date Sep 11, 1990
    • Koyo Seiko Co., Ltd.
    • Hiroshi Ooishi
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Hydraulic pressure control valve
    • Patent number 4,924,910
    • Issue date May 15, 1990
    • Koyo Seiko Co., Ltd.
    • Kazumasa Tabata
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS