TREA

Yoshiyuki Takeishi

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  • Tsuchiura, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluorine-based magnetic fluid
    • Patent number 5,785,882
    • Issue date Jul 28, 1998
    • NOK Corporation
    • Yasushi Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Fluorine-based magnetic fluid
    • Patent number 5,738,802
    • Issue date Apr 14, 1998
    • NOK Corporation
    • Yasushi Yamamoto
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorine-based magnetic fluid
    • Patent number 5,718,833
    • Issue date Feb 17, 1998
    • NOK Corporation
    • Yasushi Yamamoto
    • C07 - ORGANIC CHEMISTRY