TREA

Kouichiro Oka

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  • Osaka, JP
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Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL ARTICLE
    • Publication number 20110043902
    • Publication date Feb 24, 2011
    • YAMAMOTO KOGAKU CO., LTD.
    • Fumio ISHIBASHI
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    DOUBLE LENS
    • Publication number 20090100577
    • Publication date Apr 23, 2009
    • YAMAMOTO KOGAKU CO., LTD.
    • Hirokazu Kobayashi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE