TREA

Chiemi Hata

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing glass mold
    • Patent number 4,948,627
    • Issue date Aug 14, 1990
    • Hoya Corporation
    • Chiemi Hata
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Silicophosphate laser glass
    • Patent number 4,820,662
    • Issue date Apr 11, 1989
    • Hoya Corporation
    • Tetsuro Izumitani
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Process of surface treating laser glass
    • Patent number 4,816,049
    • Issue date Mar 28, 1989
    • Hoya Corporation
    • Chiemi Hata
    • C03 - GLASS MINERAL OR SLAG WOOL