TREA

Shoichi Sugaya

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    PTC device
    • Patent number 5,280,263
    • Issue date Jan 18, 1994
    • Daito Communication Apparatus Co., Ltd.
    • Shoichi Sugaya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Process of making a PTC composition by grafting method using two di...
    • Patent number 5,190,697
    • Issue date Mar 2, 1993
    • Daito Communication Apparatus Co.
    • Kumakazu Ohkita
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...