Patents by Inventor Dong-Soo Ha

Dong-Soo Ha 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).

  • Cathode Active Material for Lithium Secondary Battery and Method of Manufacturing the Same
    Publication number: 20240113277
    Abstract: In a method of manufacturing a cathode active material for a lithium secondary battery, a preliminary lithium metal oxide particle is prepared. The preliminary lithium metal oxide particle is cleaned using a boron compound cleaning solution. A cathode active material for a lithium secondary particle includes a lithium metal oxide particle where a ratio of a B+ peak intensity relative to a sum of peak intensities of Li+, B+ and LiB+ fragments by a TOF-SIMS analysis is in a range from 0.03% to 1.5%.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Sang Bok Kim, Ji Hoon Choi, Jik Soo Kim, Mi Jung Noh, Dong Il Jang, Dong Wook Ha
  • Hydrocracking catalyst for heavy fraction of bio-oil, method for preparing the same and method for bio-oil upgrading using the same
    Patent number: 11944958
    Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: April 2, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chunjae Yoo, Jeong-Myeong Ha, Dong Jin Suh, Jae Wook Choi, Young Hyun Yoon, Kyeongsu Kim, Chang Soo Kim, Kwang Ho Kim, Thi Lien Do
  • Monolithic sealing member for image forming apparatus and method of manufacturing the same
    Patent number: 8254804
    Abstract: A method for manufacturing a monolithic sealing member for an image forming apparatus, and an image forming apparatus having the monolithic sealing member are provided. The method includes applying a foamable polyurethane liquid in a portion of a housing in which three or more surfaces meet, molding the foamable polyurethane liquid in a mold and foaming the polyurethane liquid to obtain a polyurethane foam, and hardening the polyurethane foam. The foamable polyurethane liquid may be a one-pack foamable polyurethane liquid or a two-pack foamable polyurethane liquid.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Gon Kim, Dong-Soo Ha, Moon-Ku Kang, Soo-Bong Park
  • MONOLITHIC SEALING MEMBER FOR IMAGE FORMING APPARATUS AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20100021199
    Abstract: A method for manufacturing a monolithic sealing member for an image forming apparatus, and an image forming apparatus having the monolithic sealing member are provided. The method includes applying a foamable polyurethane liquid in a portion of a housing in which three or more surfaces meet, molding the foamable polyurethane liquid in a mold and foaming the polyurethane liquid to obtain a polyurethane foam, and hardening the polyurethane foam. The foamable polyurethane liquid may be a one-pack foamable polyurethane liquid or a two-pack foamable polyurethane liquid.
    Type: Application
    Filed: May 5, 2009
    Publication date: January 28, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Gon Kim, Dong-soo Ha, Moon-ku Kang, Soo-bong Park