Patents by Inventor Hyun-Wook Cha

Hyun-Wook Cha 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).

  • ARYLAMINE COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE AND ELECTRONIC APPARATUS
    Publication number: 20250109116
    Abstract: An object of the present invention is to provide an organic compound having excellent characteristics such as excellent hole injection and transport abilities, electron blocking ability, and high thin-film stability as material for an organic electroluminescence device having high efficiency and high durability, and also to provide an organic electroluminescence device using the compound and having high efficiency and high durability.
    Type: Application
    Filed: November 24, 2022
    Publication date: April 3, 2025
    Applicant: Hodogaya Chemical Co., Ltd.
    Inventors: Kouki Kase, Jae-Geon Lim, Heung-Seob Shin, Hyun-Wook Cha, Junichi Izumida, Shuichi Hayashi
  • Apparatus and method of processing stateful address auto-configuration protocol in IPv6 network
    Patent number: 8054839
    Abstract: Apparatus and method for processing a stateful address auto-configuration protocol in an Internet Protocol version 6 (IPv6) network are provided. The method includes multicasting, at an IPv6 network, a Router Solicitation (RS) message, acquiring and managing flag values of a Router Advertisement (RA) message received from at least one router, and setting an operation mode of a Dynamic Host Configuration Protocol-for-IPv6 (DHCPv6) client according to the flag values of the RA message.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun-Wook Cha, Pyung-Bin Lim
  • APPARATUS AND METHOD OF PROCESSING STATEFUL ADDRESS AUTO-CONFIGURATION PROTOCOL IN IPV6 NETWORK
    Publication number: 20090225680
    Abstract: Apparatus and method for processing a stateful address auto-configuration protocol in an Internet Protocol version 6 (IPv6) network are provided. The method includes multicasting, at an IPv6 network, a Router Solicitation (RS) message, acquiring and managing flag values of a Router Advertisement (RA) message received from at least one router, and setting an operation mode of a Dynamic Host Configuration Protocol-for-IPv6 (DHCPv6) client according to the flag values of the RA message.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hyun-Wook CHA, Pyung-Bin LIM