TREA

Akitsu Takeda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of pattern formation
    • Patent number 4,434,224
    • Issue date Feb 28, 1984
    • Nippon Telegraph and Telephone Public Corp.
    • Akira Yoshikawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Doping from a photoresist layer
    • Patent number 4,350,541
    • Issue date Sep 21, 1982
    • Nippon Telegraph and Telephone Public Corp.
    • Yoshihiko Mizushima
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photo-electric converting apparatus
    • Patent number 4,341,954
    • Issue date Jul 27, 1982
    • Nippon Telegraph and Telephone Public Corp.
    • Yoshihiko Mizushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE