Patents by Inventor Sun Duk Hwang

Sun Duk Hwang 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).

  • Ballast water treatment system
    Patent number: 10322788
    Abstract: Disclosed is a ballast water treatment system including: a ballast water supply unit for supplying seawater employed as ballast water to a ballast water tank; an electrolysis device receiving a part of the seawater being supplied to the ballast water tank, and generating sodium hypochlorite and hydrogen gas as by-product gas by electrolyzing the part of the seawater being supplied to the ballast water tank via the ballast water supply unit; and a hydrogen gas removing device receiving a gas-liquid mixture of electrolyzed water and the hydrogen gas that are generated in the electrolysis device, removing the hydrogen gas by a catalyst reaction, and supplying remaining electrolyzed water to the ballast water tank via the ballast water supply unit.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: June 18, 2019
    Assignee: Techwin Co, Ltd.
    Inventors: Boong Ik Jung, Jung Sik Kim, Hyun Su Shin, Sun Duk Hwang
  • Electrolysis device
    Patent number: 10252922
    Abstract: Disclosed is an electrolysis device including: an electrolyzing tank generating electrolyzed water and hydrogen gas as by-product gas by electrolyzing raw water supplied from a raw water supply unit; and a catalyst reaction tank having therein a hydrophobic catalyst, and receiving the hydrogen gas generated from the electrolyzing tank, and removing the hydrogen gas by a catalyst reaction.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: April 9, 2019
    Assignee: Techwin Co., Ltd.
    Inventors: Boong Ik Jung, Jung Sik Kim, Hyun Su Shin, Sun Duk Hwang
  • BALLAST WATER TREATMENT SYSTEM
    Publication number: 20170073057
    Abstract: Disclosed is a ballast water treatment system including: a ballast water supply unit for supplying seawater employed as ballast water to a ballast water tank; an electrolysis device receiving a part of the seawater being supplied to the ballast water tank, and generating sodium hypochlorite and hydrogen gas as by-product gas by electrolyzing the part of the seawater being supplied to the ballast water tank via the ballast water supply unit; and a hydrogen gas removing device receiving a gas-liquid mixture of electrolyzed water and the hydrogen gas that are generated in the electrolysis device, removing the hydrogen gas by a catalyst reaction, and supplying remaining electrolyzed water to the ballast water tank via the ballast water supply unit.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Boong Ik Jung, Jung Sik Kim, Hyun Su Shin, Sun Duk Hwang
  • ELECTROLYSIS DEVICE
    Publication number: 20170073821
    Abstract: Disclosed is an electrolysis device including: an electrolyzing tank generating electrolyzed water and hydrogen gas as by-product gas by electrolyzing raw water supplied from a raw water supply unit; and a catalyst reaction tank having therein a hydrophobic catalyst, and receiving the hydrogen gas generated from the electrolyzing tank, and removing the hydrogen gas by a catalyst reaction.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Boong Ik Jung, Jung Sik Kim, Hyun Su Shin, Sun Duk Hwang