Patents Assigned to True Power Electronics Co., Ltd.
  • Advertising board structure
    Patent number: 5493804
    Abstract: An advertising board structure which is formed from a character indicating neon tube and polyurethane material. The neon tube for displaying is partially exposed beyond the surface of the molded displaying board structure. The polyurethane material is used to cover onto the neon tube portion which is not to be exposed and the neon tube is first covered with a soft polyurethane material before it is covered and formed as a single unit with the polyurethane material.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: February 27, 1996
    Assignee: True Power Electronics Co., Ltd.
    Inventors: Chin-Feng Lo, Jiin-Huei Chiang