TREA

Takafumi Hasegawa

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical article having an antireflection layer
    • Patent number 5,449,558
    • Issue date Sep 12, 1995
    • Asahi Glass Company Ltd.
    • Takafumi Hasegawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Recording film and recording method
    • Patent number 5,275,867
    • Issue date Jan 4, 1994
    • Asahi Glass Company Ltd.
    • Katsutoshi Misuda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Recording sheet
    • Patent number 5,104,730
    • Issue date Apr 14, 1992
    • Asahi Glass Company Ltd.
    • Katsutoshi Misuda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Carrier medium for a coloring matter
    • Patent number 4,879,166
    • Issue date Nov 7, 1989
    • Asahi Glass Company, Ltd.
    • Katsutoshi Misuda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS