TREA

Niioka; Yoshio

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electromagnetic wave shielding material
    • Patent number 5,198,290
    • Issue date Mar 30, 1993
    • Niioka; Yoshio
    • Yoshio Niioka
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Electromagnetic wave absorber
    • Patent number 5,117,229
    • Issue date May 26, 1992
    • Niioka; Yoshio
    • Yoshio Niioka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electromagnetic wave absorber
    • Patent number 5,103,231
    • Issue date Apr 7, 1992
    • Niioka; Yoshio
    • Yoshio Niioka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Concrete manufacturing process
    • Patent number 5,021,205
    • Issue date Jun 4, 1991
    • Niioka; Yoshio
    • Yoshio Niioka
    • B28 - WORKING CEMENT, CLAY, OR STONE

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