Patents by Inventor Hyun-Chul Chung

Hyun-Chul Chung 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: 20230308413
    Abstract: Embodiments of the present disclosure include techniques for discovering services across networks based on a multicast domain name system (mDNS) protocol. An mDNS request for available services in a network is received from a client device. The client device belongs to a particular layer 2 (L2) domain. In response to receiving the mDNS request, a storage of the network device configured to store service records is queried to determine a set of available services. The set of available services is provided in a L2 domain different from the particular L2 domain. A response that includes the set of available services is generated. The response is sent to the client device.
    Type: Application
    Filed: March 25, 2022
    Publication date: September 28, 2023
    Inventors: Dennis Sam, Xiaohui Gong, May Louie, Hyun Chul Chung
  • Patent number: 10683214
    Abstract: The present disclosure relates to a multi-effect desalination apparatus by partially dosing acids into only evaporators corresponding to a relatively high temperature part, while dosing a polymer-based anti-scalant into all the evaporators, to minimize a risk of a scale and corrosion with maximizing a top brine temperature of desalination facility, and a desalination method using the same.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 16, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Hyun Chul Chung, Amr Mohamed Mahmoud Sayed Ahmed, Seung Won Ihm, Muhammad Adnan Saroosh
  • Publication number: 20170341853
    Abstract: A pallet for transferring a glass plate includes: a lower frame; an upper frame seated on a top of the lower frame to allow a glass plate to be seated; and a side clamp comprising: a fixating plate provided on a side of the upper frame to prevent horizontal shaking of the glass plate; and a distance adjusting part making the fixating plate approach or move away from the glass plate at a predetermined distance.
    Type: Application
    Filed: December 21, 2015
    Publication date: November 30, 2017
    Applicants: BNR TECH CORP., LG CHEM, LTD.
    Inventors: Ja Hwal KOO, Hyun Chul CHUNG, De Yeon LEE
  • Publication number: 20160326014
    Abstract: The present disclosure relates to a multi-effect desalination apparatus by partially dosing acids into only evaporators corresponding to a relatively high temperature part, while dosing a polymer-based anti-scalant into all the evaporators, to minimize a risk of a scale and corrosion with maximizing a top brine temperature of desalination facility, and a desalination method using the same.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 10, 2016
    Inventors: Hyun Chul CHUNG, Amr Mohamed Mahmoud SAYED AHMED, Seung Won IHM, Muhammad Adnan SAROOSH
  • Patent number: 9028294
    Abstract: Disclosed are an apparatus and a method for monitoring a glass plate polishing state. The apparatus may include a location measuring unit for measuring a location on a glass plate being polished by a polishing machine, a current measuring unit for measuring an electric current flowing into the polishing machine, a memory unit for storing a reference value of the electric current flowing into the polishing machine for each polishing location of the glass plate, and a control unit for determining whether a polishing state is faulty, by comparing a value of the electric current measured by the current measuring unit for each polishing location measured by the location measuring unit with a corresponding reference value of the electric current stored in the memory unit for each polishing location.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 12, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Hyung-Young Oh, Dae-Yeon Lee, Jae-Ik Song, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung
  • Patent number: 8449351
    Abstract: A lower unit for a glass polishing system includes a support installed to a rotatable turntable, and a carrier having a supporting part for supporting a glass to be polished, and a placing part formed in a surface opposite to the supporting part and fixed and placed to the support.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee, Dae-Yeon Lee, Jae-Ik Song, Wook Jeong, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung
  • Publication number: 20110223834
    Abstract: Disclosed are an apparatus and a method for monitoring a glass plate polishing state. The apparatus may include a location measuring unit for measuring a location on a glass plate being polished by a polishing machine, a current measuring unit for measuring an electric current flowing into the polishing machine, a memory unit for storing a reference value of the electric current flowing into the polishing machine for each polishing location of the glass plate, and a control unit for determining whether a polishing state is faulty, by comparing a value of the electric current measured by the current measuring unit for each polishing location measured by the location measuring unit with a corresponding reference value of the electric current stored in the memory unit for each polishing location.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 15, 2011
    Inventors: Won-Jae MOON, Hyung-Young Oh, Dae-Yeon Lee, Jae-Ik Song, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung
  • Publication number: 20100227534
    Abstract: A lower unit for a glass polishing system includes a support installed to a rotatable turntable, and a carrier having a supporting part for supporting a glass to be polished, and a placing part formed in a surface opposite to the supporting part and fixed and placed to the support.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 9, 2010
    Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee, Dae-Yeon Lee, Jae-Ik Song, Wook Jeong, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung