Patents by Inventor Byoung-Kon Roh

Byoung-Kon Roh 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 assembly and color picture tube utilizing the same
    Patent number: 6897605
    Abstract: A cathode assembly includes an insulation member, three holders arranged inline in the insulation member, and a support member having a rim portion in which the insulation member is inserted and supported. When a thickness of the insulation member is D millimeters (mm) and a height of the support member is F millimeters (mm), values of D and F are set to satisfy the following inequality: F/D<170%.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: May 24, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byoung-Kon Roh
  • Electron gun having improved electrode support structure
    Patent number: 6798129
    Abstract: An electron gun for a CRT includes a pair of bead glasses separated from and parallel to each other, supporting electrodes of the electron gun. An electrode has electron beam passing holes and at least one electrode support embedded in each bead glass. The electrode support includes at least two embedding protrusions embedded in the bead glass. One of the protrusions is longer than the other protrusion. The structure of the electrode support is improved so cracks in a bead glass during a beading process do not occur and twisting in a gap between the bead glass and an electrode support is minimized. There is no gap between the bead glass and the electrode, so leakage current does not flow between the electrodes, improving the lifetime of electrical features of the electron gun.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: September 28, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byoung-kon Roh
  • Cathode assembly and color picture tube utilizing the same
    Publication number: 20030094888
    Abstract: A cathode assembly includes an insulation member, three holders arranged inline in the insulation member, and a support member having a rim portion in which the insulation member is inserted and supported. When a thickness of the insulation member is D millimeters (mm) and a height of the support member is F millimeters (mm), values of D and F are set to satisfy the following inequality: F/D<170%.
    Type: Application
    Filed: October 7, 2002
    Publication date: May 22, 2003
    Inventor: Byoung-Kon Roh
  • Electron gun having improved electode support structure
    Publication number: 20030006690
    Abstract: An electron gun for a CRT includes a pair of bead glasses separated from and parallel to each other, supporting electrodes of the electron gun. An electrode has electron beam passing holes and at least one electrode support embedded in each bead glass. The electrode support includes at least two embedding protrusions embedded in the bead glass. One of the protrusions is longer than the other protrusion. The structure of the electrode support is improved so cracks in a bead glass during a beading process do not occur and twisting in a gap between the bead glass and an electrode support is minimized. There is no gap between the bead glass and the electrode, so leakage current does not flow between the electrodes, improving the lifetime of electrical features of the electron gun.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Applicant: Samsung SDI Co., Ltd.
    Inventor: Byoung-kon Roh