Patents by Inventor Hye-Won Yim

Hye-Won Yim 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).

  • Method for producing polyamide comprising amide-based molecular weight modifier, and polyamide produced thereby
    Patent number: 12215194
    Abstract: Provided are a method for producing a polyamide including an amide-based molecular weight controller and a polyamide produced thereby, wherein the amide-based molecular weight controller may easily control the molecular weight of the polyamide to have a narrow molecular weight distribution so as to prevent an increase in the molecular weight due to a basic intermediate produced in anionic polymerization and a side reaction generated under a high-temperature polymerization condition.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 4, 2025
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: Kyung Ho Kwon, Seung Hoe Do, Jin Seo Lee, Dae Hak Kim, Kyoung Won Yim, Do Kyoung Kim, Hye Yeon Lee
  • Apparatus and method for providing mobile instant messaging service
    Patent number: 8145257
    Abstract: The present invention relates to apparatus and method for providing a mobile instant messaging service. The apparatus includes a buddy status managing unit for recording and managing a status information of at least one mobile messenger subscriber; a buddy list managing unit cooperating with the buddy status managing unit for managing a buddy list of the mobile messenger subscriber based on a telephone number, and providing the buddy list to the mobile messenger subscriber; and a chatting service unit for providing a chatting service between the mobile messenger subscriber and a buddy selected by the mobile messenger subscriber in the buddy list provided to the mobile messenger subscriber by the buddy list managing unit.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 27, 2012
    Assignee: KTFreetel Co., Ltd.
    Inventors: Hye-Won Yim, Hyung-Sun Kim, Thai-Shik Yang
  • APPARATUS AND METHOD FOR PROVIDING MOBILE INSTANT MESSAGING SERVICE
    Publication number: 20090186638
    Abstract: The present invention relates to apparatus and method for providing a mobile instant messaging service. The apparatus includes a buddy status managing unit for recording and managing a status information of at least one mobile messenger subscriber; a buddy list managing unit cooperating with the buddy status managing unit for managing a buddy list of the mobile messenger subscriber based on a telephone number, and providing the buddy list to the mobile messenger subscriber; and a chatting service unit for providing a chatting service between the mobile messenger subscriber and a buddy selected by the mobile messenger subscriber in the buddy list provided to the mobile messenger subscriber by the buddy list managing unit.
    Type: Application
    Filed: June 29, 2007
    Publication date: July 23, 2009
    Inventors: Hye-Won Yim, Hyung-Sun Kim, Thai-Shik Yang