Patents by Inventor Bong-Yeon Won

Bong-Yeon Won 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).

  • Etchant composition and forming method of wiring using etchant composition
    Patent number: 11384437
    Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Hee Park, Jin Seock Kim, Bong Won Lee, Sang-woo Kim, Il-Ryong Park, Bong-Yeon Won, Dae-woo Lee
  • ETCHANT COMPOSITION AND FORMING METHOD OF WIRING USING ETCHANT COMPOSITION
    Publication number: 20200248318
    Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jong Hee PARK, Jin Seock KIM, Bong Won LEE, Sang-woo KIM, Il-Ryong PARK, Bong-Yeon WON, Dae-woo LEE
  • ETCHANT COMPOSITION AND FORMING METHOD OF WIRING USING ETCHANT COMPOSITION
    Publication number: 20180371625
    Abstract: A phosphoric acid-free etchant composition and a method of forming a wiring, the composition including about 40 wt % to about 60 wt % of an organic acid compound; about 6 wt % to about 12 wt % of a glycol compound; about 1 wt % to about 10 wt % of nitric acid, sulfuric acid, or hydrochloric acid; about 1 wt % to about 10 wt % of a nitrate salt compound; and water, all wt % being based on a total weight of the phosphoric acid-free etchant composition.
    Type: Application
    Filed: May 4, 2018
    Publication date: December 27, 2018
    Inventors: Jong Hee PARK, Jin Seock KIM, Bong Won LEE, Sang-woo KIM, Il-Ryong PARK, Bong-Yeon WON, Dae-woo LEE
  • Mössbauer spectroscopy system for applying external magnetic field at cryogenic temperature using refrigerator
    Patent number: 8433380
    Abstract: A Mössbauer spectroscopy system for applying an external magnetic field at cryogenic temperature using a refrigerator is provided. A Mössbauer spectrum can be obtained by applying the external magnetic field while changing the temperature of a superconducting magnet and a sample from a cryogenic temperature using the refrigerator, the external magnetic field can be applied while cooling the superconducting magnet using the refrigerator without the need for use of a liquid helium, thereby saving the operation cost according to consumption of the liquid helium, the mounting of a sample which it is desired to measure is easy, thereby minimizing a possibility that a worker will be exposed to gamma rays, and a convenience in use of a user can be improved.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: April 30, 2013
    Assignee: Kookmin University Industry Academic Cooperation Foundation
    Inventors: Chul-Sung Kim, Bong-Yeon Won