TREA

Kagawa Seiji

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  • Saitama, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a porous film
    • Patent number 5,593,632
    • Issue date Jan 14, 1997
    • Kagawa; Seiji
    • Seiji Kagawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Porous film and porous film manufacturing apparatus
    • Patent number 5,451,257
    • Issue date Sep 19, 1995
    • Kagawa; Seiji
    • Seiji Kagawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Porous film and porous film manufacturing apparatus
    • Patent number 5,352,108
    • Issue date Oct 4, 1994
    • Sudo; Norito
    • Seiji Kagawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Porous film manufacturing apparatus
    • Patent number 5,257,923
    • Issue date Nov 2, 1993
    • Sudo; Norito
    • Seiji Kagawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

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