TREA

Atsushi Matsumura

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sheet shutter device
    • Patent number 7,389,807
    • Issue date Jun 24, 2008
    • Sanwa Shutter Corporation
    • Toyohide Nagare
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Device for moving a winding shaft in a building shutter
    • Patent number 5,460,216
    • Issue date Oct 24, 1995
    • Sanwa Shutter Corporation
    • Masato Hirao
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

  • Information Patent Application

    Sheet shutter
    • Publication number 20060144530
    • Publication date Jul 6, 2006
    • Toyohide Nagare
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS