Patents by Inventor Sung-Hun Ji

Sung-Hun Ji 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).

  • Cathode ray tube
    Patent number: 7250714
    Abstract: A cathode ray tube includes a panel with inner and outer surfaces, a funnel connected to the panel, a neck connected to the rear of the funnel, and a shadow mask mounted within the panel. The inner surface of the panel satisfies the following condition: 0.2?Px?0.4, 0.3?Py?0.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 31, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do-Hun Pyun, Sung-Hun Ji, Yeun-Gil Choi, Soon-Dong Jeong, Joon-Soo Bae
  • Cathode ray tube
    Publication number: 20050285499
    Abstract: A cathode ray tube includes a panel with inner and outer surfaces, a funnel connected to the panel, a neck connected to the rear of the funnel, and a shadow mask mounted within the panel. The inner surface of the panel satisfies the following condition: 0.2?Px?0.4, 0.3?Py?0.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 29, 2005
    Inventors: Do-Hun Pyun, Sung-Hun Ji, Yeun-Gil Choi, Soon-Dong Jeong, Joon-Soo Bae
  • Color cathode-ray tube with expanded Q-value between the shadow mask and a phosphor screen
    Patent number: 6624558
    Abstract: A color cathode-ray tube is provided for easily detaching a mask assembly when manufacturing a phosphor screen by expanding the gap (Q-value) between the shadow mask and a phosphor screen by a number times while maintaing the resolution degree. The cathode-ray tube includes a phosphor screen formed on the inner surface of a panel and repeatedly forms a plurality of red, green and blue phosphor stripes, an electron gun emitting three electron beams toward the phosphor screen, and a shadow mask arranged in front of the phosphor screen facing the electron gun and forming a plurality of beam passage apertures for separating the electron beams.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: September 23, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sung-Hun Ji
  • Color cathode-ray tube
    Publication number: 20010013751
    Abstract: A color cathode-ray tube is provided for easily detaching a mask assembly when manufacturing a phosphor screen by expanding the gap (Q-value) between the shadow mask and a phosphor screen by a number times while maintaing the resolution degree. The cathode-ray tube includes a phosphor screen formed on the inner surface of a panel and repeatedly forms a plurality of red, green and blue phosphor stripes, an electron gun emitting three electron beams toward the phosphor screen, and a shadow mask arranged in front of the phosphor screen facing the electron gun and forming a plurality of beam passage apertures for separating the electron beams.
    Type: Application
    Filed: January 2, 2001
    Publication date: August 16, 2001
    Inventor: Sung-Hun Ji