TREA

Yoshio Itaya

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Semiconductor laser
    • Patent number 4,410,994
    • Issue date Oct 18, 1983
    • Kokusai Denshin Denwa Kabushiki Kaisha
    • Chuichi Ota
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor laser with buffer layer
    • Patent number 4,340,966
    • Issue date Jul 20, 1982
    • Kokusai Denshin Denwa Kabushiki Kaisha
    • Shigeyuki Akiba
    • H01 - BASIC ELECTRIC ELEMENTS