Patents by Inventor Goichi Yasda

Goichi Yasda 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).

  • Patent number: 6677701
    Abstract: A stem for a cathode ray tube. The stem includes a circular disc type stem part adapated to be integrally sealed with an end of a neck portion of the cathod ray tube, an exhausting tube mounted in the middle of the stem part for the exhausting of the cathode ray tube, a plurality of leads mounted to the stem part along a periphery of the exhausting tube and connected to respective electrodes of an electron gun for providing voltage signals, and a plurality of stem mounds mounted to the respective leads for fixing and supporting the leads in the stem parts and having different shapes and/or sizes depending on loads to be applied to inner leads, so that cracks of the stem mounds and blocking problems of a shadow mask due to the cracks may be prevented.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: January 13, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hwan-Sung Joo, Goichi Yasda
  • Publication number: 20020030432
    Abstract: A stem for a cathode ray tube. The stem includes a circular disc type stem part adapated to be integrally sealed with an end of a neck portion of the cathod ray tube, an exhausting tube mounted in the middle of the stem part for the exhausting of the cathode ray tube, a plurality of leads mounted to the stem part along a periphery of the exhausting tube and connected to respective electrodes of an electron gun for providing voltage signals, and a plurality of stem mounds mounted to the respective leads for fixing and supporting the leads in the stem parts and having different shapes and/or sizes depending on loads to be applied to inner leads, so that cracks of the stem mounds and blocking problems of a shadow mask due to the cracks may be prevented.
    Type: Application
    Filed: July 24, 2001
    Publication date: March 14, 2002
    Inventors: Hwan-Sung Joo, Goichi Yasda