TREA

Yoshiaki Otsuka

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Easy opening pouch
    • Patent number 5,786,050
    • Issue date Jul 28, 1998
    • Toyo Seikan Kaisha, Ltd.
    • Yoshiaki Otsuka
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Laminated film bag for packaging food
    • Patent number 5,312,659
    • Issue date May 17, 1994
    • Toyo Seikan Kaisha Ltd.
    • Yoshiaki Otsuka
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Retort-sterilizable laminated pouch comprising a flexible gas-barri...
    • Patent number 4,311,742
    • Issue date Jan 19, 1982
    • Toyo Seikan Kaisha, Ltd.
    • Yoshiaki Otsuka
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL