TREA

Masato Hirao

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • 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
  • Information Patent Grant

    Shutter curtain for a building opening
    • Patent number 5,265,662
    • Issue date Nov 30, 1993
    • Sanwa Shutter Corporation
    • Masato Hirao
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Panel shutter mechanism
    • Patent number 4,662,420
    • Issue date May 5, 1987
    • Sanwa Shutter Corporation
    • Masato Hirao
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS