Patents by Inventor Byung Hong Yi

Byung Hong Yi 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).

  • White and color photoexcitation light emitting sheet and method for the fabrication thereof
    Patent number: 8004186
    Abstract: The present invention relates to a white and color photoexcitation light emitting sheet comprising a substrate, a light source formed on the substrate, and a white and color photoexcitation light emitting layer capable of converting a light emitted from the light source into a light having a different wavelength, where the white and color photoexcitation light emitting layer is fabricated by mixing a matrix polymer, white and color photoexcitation light emitting materials and a solvent, spinning the resulting mixture to prepare an ultrafine composite fiber layer of the matrix polymer/photoexcitation light emitting materials, and thermocompressing the ultrafine composite fiber layer; and a method for fabrication thereof. The white and color photoexcitation light emitting sheet according to the present invention has uniform brightness and color coordinates and exhibits high color reproducibility.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 23, 2011
    Assignee: Korea Institute of Science and Technology
    Inventors: Jai Kyeong Kim, Dong Young Kim, Seong Mu Jo, Jung Soo Park, June Whan Choi, Dae Seok Na, Byung Hong Yi, Jae Hyun Lim
  • White and color photoexcitation light emitting sheet and method for the fabrication thereof
    Publication number: 20090212695
    Abstract: The present invention relates to a white and color photoexcitation light emitting sheet comprising a substrate, a light source formed on the substrate, and a white and color photoexcitation light emitting layer capable of converting a light emitted from the light source into a light having a different wavelength, where the white and color photoexcitation light emitting layer is fabricated by mixing a matrix polymer, white and color photoexcitation light emitting materials and a solvent, spinning the resulting mixture to prepare an ultrafine composite fiber layer of the matrix polymer/photoexcitation light emitting materials, and thermocompressing the ultrafine composite fiber layer; and a method for fabrication thereof. The white and color photoexcitation light emitting sheet according to the present invention has uniform brightness and color coordinates and exhibits high color reproducibility.
    Type: Application
    Filed: January 26, 2009
    Publication date: August 27, 2009
    Inventors: Jai Kyeong Kim, Dong Young Kim, Seong Mu Jo, Jung Soo Park, June Whan Choi, Dae Seok Na, Byung Hong Yi, Jae Hyun Lim