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Masayuki Komiya

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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluorosphosphate optical glass
    • Patent number 5,017,520
    • Issue date May 21, 1991
    • Sumita Optical Glass, Inc.
    • Masaaki Otsuka
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Fluorophosphate optical glass
    • Patent number 4,990,468
    • Issue date Feb 5, 1991
    • Sumita Optical Glass, Inc.
    • Masayuki Komiya
    • C03 - GLASS MINERAL OR SLAG WOOL