Patents by Inventor Kyu-Cheol PAIK

Kyu-Cheol PAIK 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).

  • Thermosensitive recording material
    Patent number: 10906341
    Abstract: The present invention relates to a thermosensitive recording material and, specifically, to a thermosensitive recording material comprising: a colorless or light-colored leuco dye; a compound of chemical formula (1) containing a non-phenolic sulfonyl urea group as a developer; at least one of general formulas II-1, II-2, and II-3 as a sensitizer; a binder; and other fillers. The thermosensitive recording material of the present invention improves the background blurring of a color-developed image by using a non-phenolic developer and exhibits excellent effects in view of color development sensitivity, water resistance, oil resistance, plasticizer resistance, and the like.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 2, 2021
    Assignees: HANSOL PAPER CO., LTD.
    Inventors: Kyu-Cheol Paik, Jung-Ok An
  • THERMOSENSITIVE RECORDING MATERIAL
    Publication number: 20180361770
    Abstract: The present invention relates to a thermosensitive recording material and, specifically, to a thermosensitive recording material comprising: a colorless or light-colored leuco dye; a compound of chemical formula (1) containing a non-phenolic sulfonyl urea group as a developer; at least one of general formulas II-1, II-2, and II-3 as a sensitizer; a binder; and other fillers. The thermosensitive recording material of the present invention improves the background blurring of a color-developed image by using a non-phenolic developer and exhibits excellent effects in view of color development sensitivity, water resistance, oil resistance, plasticizer resistance, and the like.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 20, 2018
    Inventors: Kyu-Cheol PAIK, Jung-Ok AN