TREA

Hidenori Nagai

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  • Furukawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Push button switch
    • Patent number 4,827,087
    • Issue date May 2, 1989
    • Alps Electric Co., Ltd.
    • Akira Niinuma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Telephone line-switching device
    • Patent number 4,773,089
    • Issue date Sep 20, 1988
    • Alps Electric Co., Ltd.
    • Teiichi Miura
    • H01 - BASIC ELECTRIC ELEMENTS