TREA

Hisanao Tosaka

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Patents Grantslast 30 patents

  • Information Patent Grant

    PTC element
    • Patent number 7,573,008
    • Issue date Aug 11, 2009
    • TDK Corporation
    • Masaaki Yamashita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    PTC element
    • Patent number 7,414,515
    • Issue date Aug 19, 2008
    • TDK Corporation
    • Noriaki Hirano
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    PTC thermistor
    • Patent number 7,368,069
    • Issue date May 6, 2008
    • TDK Corporation
    • Hisanao Tosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    PTC element and production process thereof
    • Patent number 7,326,889
    • Issue date Feb 5, 2008
    • TDK Corporation
    • Hisanao Tosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    PTC thermistor body, PTC thermistor, method of making PTC thermisto...
    • Patent number 7,019,613
    • Issue date Mar 28, 2006
    • TDK Corporation
    • Yoshito Nihira
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Organic PTC thermistor
    • Patent number 5,793,276
    • Issue date Aug 11, 1998
    • TDK Corporation
    • Hisanao Tosaka
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents