TREA

Atsushi Kikkawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Illumination system
    • Patent number 5,005,959
    • Issue date Apr 9, 1991
    • Dainippon Screen Mfg. Co., Ltd.
    • Shinichi Nagata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Film thickness measuring device and method
    • Patent number 4,676,647
    • Issue date Jun 30, 1987
    • Dainippon Screen Mfg. Co., Ltd.
    • Atsushi Kikkawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Line width measuring device and method
    • Patent number 4,659,936
    • Issue date Apr 21, 1987
    • Dainippon Screen Mfg. Co., Ltd.
    • Atsushi Kikkawa
    • G01 - MEASURING TESTING