TREA

Tetsuya Kumada

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing glass bar
    • Patent number 8,966,940
    • Issue date Mar 3, 2015
    • The Fukukawa Electric Co., Ltd.
    • Tetsuya Kumada
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Furnace for forming optical fiber
    • Patent number 6,192,715
    • Issue date Feb 27, 2001
    • The Furukawa Electric Co., Ltd.
    • Nobuaki Orita
    • C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents