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Tutomu Kito

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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermochromic textile material
    • Patent number 4,681,791
    • Issue date Jul 21, 1987
    • Pilot Ink Co., Ltd.
    • Yutaka Shibahashi
    • D05 - SEWING EMBROIDERING TUFTING
  • Information Patent Grant

    Method of producing reversible thermochromic display
    • Patent number 4,554,565
    • Issue date Nov 19, 1985
    • Pilot Ink Co., Ltd.
    • Tutomu Kito
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermochromatic materials
    • Patent number 4,421,560
    • Issue date Dec 20, 1983
    • Pilot Ink Company Ltd.
    • Tutomu Kito
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS