Patents by Inventor Dong-Keun KWEON

Dong-Keun KWEON 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).

  • Patent number: 10105744
    Abstract: The invention discloses a press die for electrically assisted manufacturing performing plastic working at a relatively lower temperature than hot working by using an electroplasticity effect that a flow stress inside a material is reduced when a current is applied to the material, the press die for electrically assisted manufacturing including: an upper die and a lower die configured to be disposed at upper and lower portions, having the material disposed therebetween; and at least one electrode pair configured to be disposed in the upper die or the lower die, wherein the electrode pair is configured so that electrodes having different polarities in a width direction of the material face each other.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: October 23, 2018
    Assignees: MS AUTOTECH CO., LTD, ULSAN TECHNOPARK
    Inventors: Jang-Soo Kim, Dae-Ho Yang, Hong-Kyo Jin, Kyung-Sik Kim, Dong-Keun Kweon, Sang-Woo So, Hyun-Tae Hwang
  • Publication number: 20150183019
    Abstract: The invention discloses a press die for electrically assisted manufacturing performing plastic working at a relatively lower temperature than hot working by using an electroplasticity effect that a flow stress inside a material is reduced when a current is applied to the material, the press die for electrically assisted manufacturing comprising: an upper die and a lower die configured to be disposed at upper and lower portions, having the material disposed therebetween; and at least one electrode pair configured to be disposed in the upper die or the lower die, wherein the electrode pair is configured so that electrodes having different polarities in a width direction of the material face each other.
    Type: Application
    Filed: May 26, 2014
    Publication date: July 2, 2015
    Applicants: ULSAN TECHNOPARK, MS AUTOTECH CO., LTD
    Inventors: Jang-Soo KIM, Dae-Ho YANG, Hong-Kyo JIN, Kyung-Sik KIM, Dong-Keun KWEON, Sang-Woo SO, Hyun-Tae HWANG