TREA

Yohji Matsuhisa

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  • Ehime, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ultrahigh strength carbon fibers
    • Patent number RE33537
    • Issue date Feb 12, 1991
    • Toray Industries, Inc.
    • Tohru Hiramatsu
    • 423 - Chemistry of inorganic compounds
  • Information Patent Grant

    Ultrahigh strength carbon fibers
    • Patent number 4,637,925
    • Issue date Jan 20, 1987
    • Toray Industries, Inc.
    • Tohru Hiramatsu
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Ultrahigh strength carbon fibers
    • Patent number 4,600,572
    • Issue date Jul 15, 1986
    • Toray Industries, Inc.
    • Tohru Hiramatsu
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING