TREA

Shigeo Nara

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  • Mito, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyimides and optical parts obtained by using the same
    • Patent number 5,837,804
    • Issue date Nov 17, 1998
    • Hitachi Chemical Company, Ltd.
    • Chiaki Yamagishi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Plastics optical fibers
    • Patent number 4,542,957
    • Issue date Sep 24, 1985
    • Nippon Telegraph & Telephone Public Corporation
    • Kazuo Ishiwari
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for production of optical fiber connectors
    • Patent number 4,479,910
    • Issue date Oct 30, 1984
    • Nippon Telegraph and Telephone Public Corp.
    • Takashi Kurokawa
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Fabrication of a low-loss plastic optical fiber
    • Patent number 4,381,269
    • Issue date Apr 26, 1983
    • Nippon Telegraph and Telephone Public Corporation
    • Toshikuni Kaino
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL