Patents by Inventor Jung-Soo Chang

Jung-Soo Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Shadow mask for cathode ray tube
    Patent number: 6433467
    Abstract: A shadow mask for a cathode ray tube having a faceplate panel with an inner phosphor screen includes a front surface and a side wall. The front surface is formed with a beam-guide portion having a plurality of apertures, and a non-opening portion surrounding the beam-guide portion. The side wall is bent from the non-opening portion at an angle, and fixed to the panel via a mask frame. The front surface of the shadow mask has a predetermined waved pattern in at least one direction.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: August 13, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kwang-Sik Lee, Do-Hun Phun, Dong-Hwan Kim, Tae-Hoon Kweon, Jung-Soo Chang