TREA

Shuji Matumura

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  • Nagoya, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for preparing perforated film
    • Patent number 4,978,486
    • Issue date Dec 18, 1990
    • Mitsui Toatsu Chemicals, Incorporated
    • Michiyasu Ito
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL