Patents Represented by Law Firm Walllenstein, Wagner, Hattis, Strampel & Aubel, Ltd.
  • Printing mask for use in printing on a board having a projected portion and manufacturing process therefor
    Patent number: 4383482
    Abstract: A printing mask for use in printing on a board having a projection characterized in that a cavity member with a desired dimension is put on a screen tensed on a frame, a part of the screen surrounded by an open end of the cavity member is cut off, and thereafter, the other part of the screen is formed with a pattern to be printed.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: May 17, 1983
    Assignee: Clarion Company, Ltd.
    Inventor: Tsukasa Ito