TREA

Ryoji Kinugawa

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  • Suita, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Display element attachment holder
    • Patent number 4,674,008
    • Issue date Jun 16, 1987
    • Alps Electric Co., Ltd.
    • Minoru Oyama
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Interlocking gang push-button switch
    • Patent number 4,297,540
    • Issue date Oct 27, 1981
    • Alps Electric Co., Ltd.
    • Kotaroh Tsutsui
    • H01 - BASIC ELECTRIC ELEMENTS