TREA

Hisaharu Shiromizu

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ceramic substrate for electrical devices
    • Patent number 4,943,470
    • Issue date Jul 24, 1990
    • NGK Spark Plug Co., Ltd.
    • Hisaharu Shiromizu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Process for producing multilayer circuit board
    • Patent number 4,810,528
    • Issue date Mar 7, 1989
    • NGK Spark Plug Co.
    • Kazuo Kondo
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electric field forming apparatus
    • Patent number 4,672,503
    • Issue date Jun 9, 1987
    • NGB Spark Plug Co., Ltd.
    • Senichi Masuda
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Ceramic ozonizer
    • Patent number 4,666,679
    • Issue date May 19, 1987
    • NGK Spark Plug Co., Ltd.
    • Senichi Masuda
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Ceramic metallizing ink
    • Patent number 4,381,198
    • Issue date Apr 26, 1983
    • NGK Spark Plug Co., Ltd.
    • Masaru Kondo
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...