Patents by Inventor Hyun S. Park

Hyun S. Park 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).

  • Publication number: 20240076788
    Abstract: Disclosed are an oxidizing electrode, a water electrolysis device including the same and a method for manufacturing the same. According to exemplary embodiments of the present disclosure, there is provided an oxidizing electrode with improved performance at low loadings of noble metals, especially, ruthenium (Ru) and iridium oxide, in which a ruthenium (Ru) layer and an iridium oxide layer formed on a substrate by electrodeposition in a sequential order are supported by electrochemical reaction rather than physical bonding.
    Type: Application
    Filed: January 18, 2023
    Publication date: March 7, 2024
    Inventors: Hyun S. PARK, Jong Hyun JANG, Hee-Young PARK, Su Ji LEE, Sung Jong YOO, Jin Young KIM, Jimin KONG, Jin-ho OH, So Young LEE
  • Patent number: 11649551
    Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 16, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Young Lee, Hyoung-Juhn Kim, Sae Yane Baek, Taekyung Lee, Sung Jong Yoo, Jong Hyun Jang, Hee-Young Park, Jin Young Kim, Hyun S. Park
  • Publication number: 20220170168
    Abstract: The present disclosure provides a high-performance electrode for water electrolysis using electrospray, a membrane electrode assembly including the same, a water electrolysis device including the electrode for water electrolysis, and a method for manufacturing the electrode for water electrolysis. The present disclosure is to provide a membrane electrode assembly (MEA) having increased porosity by using electrospray, and to apply the membrane electrode assembly to electrolysis.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Inventors: Han Ik JO, Hee-Young PARK, Jong Hyun JANG, Hyun S. PARK, Bora SEO, Hyoung-Juhn KIM, Sung Jong YOO
  • Publication number: 20220042185
    Abstract: The present disclosure relates to a catalyst for electrochemical synthesis of ammonia, which includes a metal sulfide, a method for preparing the same and a method for regenerating the same.
    Type: Application
    Filed: June 9, 2021
    Publication date: February 10, 2022
    Inventors: Hyun S. PARK, Sung Jong YOO, Jong Hyun JANG, Hee-Young PARK, Bora SEO, Jin Young KIM, Hyoung-Juhn KIM, So Young LEE, Jihyun CHOI, Jimin KONG, Hee Soo KIM, Gyu Seong YI
  • Publication number: 20210332486
    Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 28, 2021
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Young LEE, Hyoung-Juhn KIM, Sae Yane BAEK, Taekyung LEE, Sung Jong YOO, Jong Hyun JANG, Hee-Young PARK, Jin Young KIM, Hyun S. PARK
  • Publication number: 20210301412
    Abstract: The present disclosure provides a Cu1.81S catalyst for synthesizing NH3 and a method for synthesizing NH3 using the same. According to the present disclosure, the Cu1.81S catalyst is provided in order to increase an efficiency of NH3 synthesis. A copper sulfide catalyst and the method for synthesizing NH3 via an electrochemical nitrogen reduction reaction (NRR) using the Cu1.81S catalyst are provided in order to reduce a limiting potential (UL) required for the NRR. In the NRR for the NH3 synthesis, it is provided the copper sulfide catalyst that can be used in any one of two different pathways for the NRR, and the method for synthesizing NH3 with higher activity of the NRR based thereon.
    Type: Application
    Filed: November 25, 2020
    Publication date: September 30, 2021
    Applicant: Korea Institute of Science and Technology
    Inventors: Sang Soo Han, Seung Yong Lee, Hyun S. Park, Min Cheol Kim, Hyun Ji Nam, Ji Hyun Choi
  • Patent number: D362344
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: September 19, 1995
    Assignee: Lotte Confectionery Co., Inc.
    Inventor: Hyun S. Park
  • Patent number: D369296
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: April 30, 1996
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun S. Park
  • Patent number: D378056
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: February 18, 1997
    Assignee: Lotte Confectionery Co., Ltd.
    Inventor: Hyun S. Park