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Yuichiro Kawabata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Photo-curable nanoimprint composition, method for formatting patter...
    • Patent number 9,228,035
    • Issue date Jan 5, 2016
    • Tokuyama Corporation
    • Hideki Umekawa
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Photochromic optical element
    • Patent number 8,557,377
    • Issue date Oct 15, 2013
    • Tokuyama Corporation
    • Katsuhiro Mori
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Chromene compound
    • Patent number 7,521,004
    • Issue date Apr 21, 2009
    • Tokuyama Corporation
    • Junji Momoda
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Chromene compound
    • Patent number 6,723,859
    • Issue date Apr 20, 2004
    • Tokuyama Corporation
    • Yuichiro Kawabata
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic polymerizable composition
    • Patent number 6,362,248
    • Issue date Mar 26, 2002
    • Tokuyama Corporation
    • Tadashi Hara
    • G02 - OPTICS
  • Information Patent Grant

    Chromene compound
    • Patent number 6,340,765
    • Issue date Jan 22, 2002
    • Tokuyama Corporation
    • Junji Momoda
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Chromene compound
    • Patent number 6,197,225
    • Issue date Mar 6, 2001
    • Tokuyama Corporation
    • Tsuneyoshi Tanizawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic composition
    • Patent number 6,141,135
    • Issue date Oct 31, 2000
    • Tokuyama Corporation
    • Hironobu Nagoh
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Chromene compound
    • Patent number 6,022,496
    • Issue date Feb 8, 2000
    • Tokuyama Corporation
    • Yuichiro Kawabata
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Chromene compound
    • Patent number 5,932,725
    • Issue date Aug 3, 1999
    • Tokuyama Corporation
    • Yuichiro Kawabata
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents