Patents by Inventor Yun Na Kim

Yun Na Kim 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).

  • Display device and method of manufacturing the same
    Patent number: 12217694
    Abstract: A display device includes: a plurality of pixels connected to gate lines and data lines; a gate driver to supply a gate signal to the gate lines; and a data driver to supply a data signal to the data lines. The gate driver includes: a first transistor including a first active layer at a first layer; and a second transistor including a second active layer at a second layer on the first layer.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: February 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun Woo Kim, Mee Jae Kang, Doo Na Kim, Yun Jung Oh, Yong Su Lee, Jae Hwan Chu
  • Additive composition for tile cement mortar and tile cement mortar comprising same
    Patent number: 11345643
    Abstract: Provided are an additive composition for a tile cement mortar and a tile cement mortar including the additive composition for a tile cement mortar. The provided additive composition for a tile cement mortar includes cellulose ether and urea, wherein the amount of the urea is from 5 parts by weight to 43 parts by weight based on 100 parts by weight of the cellulose ether.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 31, 2022
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Yun Na Kim, Nak Woon Choi, Bong Jin Kwon, Min Seok Kang, Hyun Ji Jeong
  • ADDITIVE COMPOSITION FOR TILE CEMENT MORTAR AND TILE CEMENT MORTAR COMPRISING SAME
    Publication number: 20200290934
    Abstract: Provided are an additive composition for a tile cement mortar and a tile cement mortar including the additive composition for a tile cement mortar. The provided additive composition for a tile cement mortar includes cellulose ether and urea, wherein the amount of the urea is from 5 parts by weight to 43 parts by weight based on 100 parts by weight of the cellulose ether.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 17, 2020
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Yun Na Kim, Nak Woon Choi, Bong Jin Kwon, Min Seok Kang, Hyun Ji Jeong