Patents by Inventor Seoung-Hun Lee

Seoung-Hun Lee 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).

  • System for measuring electro-optic coefficient by using interference fringe measurement, and method of measuring electro-optic coefficient by using the system
    Patent number: 8724117
    Abstract: Measuring of an electro-optic coefficient and a thermo-optic coefficient of an optical device and an optical material, and more specifically, to measurement systems and methods of evaluating the electro-optic and thermo-optic coefficients by using interference fringe measurement techniques, wherein those optical characteristics can be precisely measured over a wide wavelength intended without using a complicated measuring equipment.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: May 13, 2014
    Assignee: Inha Industry Partnership Institute
    Inventors: Kyong-Hon Kim, Seoung-Hun Lee, Seung-Hwan Kim, El-Hang Lee
  • SYSTEMS FOR MEASURING ELECTRO-OPTIC AND THERMO-OPTIC COEFFICIENTS BY USING INTERFERENCE FRINGE MEASUREMENT, AND METHODS OF MEASURING ELECTRO-OPTIC AND THERMO-OPTIC COEFFICIENTS BY USING THE SYSTEMS
    Publication number: 20100290055
    Abstract: Measuring of an electro-optic coefficient and a thermo-optic coefficient of an optical device and an optical material, and more specifically, to measurement systems and methods of evaluating the electro-optic and thermo-optic coefficients by using interference fringe measurement techniques, wherein those optical characteristics can be precisely measured over a wide wavelength intended without using a complicated measuring equipment.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Inventors: Kyong-Hon Kim, Seoung-Hun Lee, Seung-Hwan Kim, El-Hang Lee
  • Trapezoid ultra wide band patch antenna
    Patent number: 7042401
    Abstract: A micro-miniature, light weighted and low cost trapezoid ultra wide antenna having an ultra wide band characteristics and a notch characteristic in 5 GHz WLAN band (5.15–5.35 GHz) is disclosed. The trapezoid ultra wide antenna includes: a dielectric substrate; a trapezoid shaped patch formed at an upper end of a middle line on an upper side of the dielectric substrate; a feeding line formed at a bottom end of the middle line on the upper side of the dielectric substrate for feeding electric power to the trapezoid shaped patch; a matching stub formed between the trapezoid shaped patch and the feeding line for impedance matching between the trapezoid shaped patch and the feeding line; and a ground formed at a side of the feeding line on the upper side of the dielectric substrate.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: May 9, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong-Kweon Park, Bong-Hyuk Park, Seung-Sik Lee, Jae-Young Kim, Sangsung Choi, Seoung-Hun Lee, Jung-Nam Lee
  • TRAPEZOID ULTRA WIDE BAND PATCH ANTENNA
    Publication number: 20060066487
    Abstract: A micro-miniature, light weighted and low cost trapezoid ultra wide antenna having an ultra wide band characteristics and a notch characteristic in 5 GHz WLAN band (5.15-5.35 GHz) is disclosed. The trapezoid ultra wide antenna includes: a dielectric substrate; a trapezoid shaped patch formed at an upper end of a middle line on an upper side of the dielectric substrate; a feeding line formed at a bottom end of the middle line on the upper side of the dielectric substrate for feeding electric power to the trapezoid shaped patch; a matching stub formed between the trapezoid shaped patch and the feeding line for impedance matching between the trapezoid shaped patch and the feeding line; and a ground formed at a side of the feeding line on the upper side of the dielectric substrate.
    Type: Application
    Filed: December 28, 2004
    Publication date: March 30, 2006
    Inventors: Jong-Kweon Park, Bong-Hyuk Park, Seung-Sik Lee, Jae-Young Kim, Sangsung Choi, Seoung-Hun Lee, Jung-Nam Lee