TREA

Takeshi Kojima

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  • Aichi-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Illuminating display device
    • Patent number 5,684,468
    • Issue date Nov 4, 1997
    • Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    • Masakazu Gotoh
    • G02 - OPTICS
  • Information Patent Grant

    Light controlling sheet
    • Patent number 4,892,387
    • Issue date Jan 9, 1990
    • Kabushiki Kaisha Tokai Rika Denki Seisakusho
    • Noboru Takeuchi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Light controlling sheet
    • Patent number 4,788,094
    • Issue date Nov 29, 1988
    • Kabushiki Kaisha Tokai Rika Denki Seisakusho
    • Masayuki Morita
    • G02 - OPTICS
  • Information Patent Grant

    Light controlling sheet
    • Patent number 4,772,097
    • Issue date Sep 20, 1988
    • Kabushiki Kaisha Tokai Rika
    • Noboru Takeuchi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS