TREA

Hiraku Harada

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrode
    • Patent number 6,432,325
    • Issue date Aug 13, 2002
    • TDK Corporation
    • Munemitsu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electron-emitting material and preparing process
    • Patent number 6,383,416
    • Issue date May 7, 2002
    • TDK Corporation
    • Munemitsu Hamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multilayer through type capacitor array
    • Patent number 5,590,016
    • Issue date Dec 31, 1996
    • TDK Corporation
    • Yoshikazu Fujishiro
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic fluid
    • Patent number 4,626,370
    • Issue date Dec 2, 1986
    • TDK Corporation
    • Katsuhiko Wakayama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic fluid and process for preparing the same
    • Patent number 4,624,797
    • Issue date Nov 25, 1986
    • TDK Corporation
    • Katsuhiko Wakayama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic fluid
    • Patent number 4,608,186
    • Issue date Aug 26, 1986
    • TDK Corporation
    • Katsuhiko Wakayama
    • H01 - BASIC ELECTRIC ELEMENTS