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Toshiyuki Koshimizu

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plastic lens and production method thereof
    • Patent number 6,466,376
    • Issue date Oct 15, 2002
    • Konica Corporation
    • Toshiyuki Koshimizu
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Plastic lens and production method thereof
    • Publication number 20010007513
    • Publication date Jul 12, 2001
    • KONICA CORPORATION
    • Toshiyuki Koshimizu
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL