Patents by Inventor Kuk-Hwan Ra

Kuk-Hwan Ra 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).

  • SMA connector
    Patent number: 7471168
    Abstract: The present invention discloses to an SMA connector, a preferable embodiment of which comprises a body acting as ground, a central conductor existing in the inner part of the ground, an insulator with a predetermined dielectric constant existing between the body and the central conductor, a first step transition part formed in the body, a taper formed in the central conductor in order to improve RF characteristics and to fix the central conductor and the insulator, and a second step transition part formed in the central conductor corresponding to the first step transition part to improve RF characteristics.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: December 30, 2008
    Assignees: Mission Technology Co., Ltd., Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Jong-Chul Lee, Jae-Sun Lee, Ki-Byoung Kim, Tae-Soon Yun, Sang-Gun Lee, Nam-Young Kim, Jong-Heon Kim, Byung-Je Lee, Bub-Sang Yun, Kuk-Hwan Ra, Youn-Joo Lee, Sun-Won Hong
  • SMA connector
    Publication number: 20060128215
    Abstract: The present invention discloses to an SMA connector, a preferable embodiment of which comprises a body acting as ground, a central conductor existing in the inner part of the ground, an insulator with a predetermined dielectric constant existing between the body and the central conductor, a first step transition part formed in the body, a taper formed in the central conductor in order to improve RF characteristics and to fix the central conductor and the insulator, and a second step transition part formed in the central conductor corresponding to the first step transition part to improve RF characteristics.
    Type: Application
    Filed: July 14, 2003
    Publication date: June 15, 2006
    Applicants: Mission Telecom Corporation, Kwangwoon Foundation
    Inventors: Jong-Chul Lee, Jae-Sun Lee, Ki-Byoung Kim, Tae-Soon Yun, Sang-Gun Lee, Nam-Young Kim, Jong-Heon Kim, Byung-Je Lee, Bub-Sang Yun, Kuk-Hwan Ra, Youn-Joo Lee, Sun-Won Hong