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Shigeo Okamoto

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  • Amagasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-contained type pressure sensitive record sheet
    • Patent number 4,680,597
    • Issue date Jul 14, 1987
    • Kanzaki Paper Manufacturing Co. Ltd.
    • Shigeo Okamoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Self-contained type pressure sensitive record sheet
    • Patent number 4,486,762
    • Issue date Dec 4, 1984
    • Kanzaki Paper Manufacturing Co., Ltd.
    • Shigeo Okamoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Microcapsule dispersions
    • Patent number 4,403,051
    • Issue date Sep 6, 1983
    • Kanzaki Paper Manufacturing Company, Limited
    • Tomoyuki Okimoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Method of making impermeable microcapsules
    • Patent number 4,228,031
    • Issue date Oct 14, 1980
    • Kanzaki Paper Manufacturing Co., Ltd.
    • Hiroshi Iwasaki
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL