Patents by Inventor Sungyul Maeng

Sungyul Maeng 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).

  • Current-jump-control circuit including abrupt metal-insulator phase transition device
    Patent number: 6987290
    Abstract: A current-jump-control circuit including an abrupt metal-insulator phase transition device is proposed, and includes a source, the abrupt metal-insulator phase transition device and a resistive element. The abrupt metal-insulator phase transition device includes first and second electrodes connected to the source, and shows an abrupt metal-insulator phase transition characteristic of a current jump when an electric field is applied between the first electrode and the second electrode. The resistive element is connected between the source and the abrupt metal-insulator phase transition device to control a jump current flowing through the abrupt metal-insulator phase transition device. According to the above current control circuit, the abrupt metal-insulator phase transition device can be prevented from being failed due to a large amount of current and thus the current-jump-control circuit can be applied in various application fields.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: January 17, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Tak Kim, Doo Hyeb Youn, Kwang Yong Kang, Byung Gyu Chae, Yong Sik Lim, Seong Hyun Kim, Sungyul Maeng, Gyungock Kim
  • Current-jump-control circuit including abrupt metal-insulator phase transition device
    Publication number: 20050098836
    Abstract: A current-jump-control circuit including an abrupt metal-insulator phase transition device is proposed, and includes a source, the abrupt metal-insulator phase transition device and a resistive element. The abrupt metal-insulator phase transition device includes first and second electrodes connected to the source, and shows an abrupt metal-insulator phase transition characteristic of a current jump when an electric field is applied between the first electrode and the second electrode. The resistive element is connected between the source and the abrupt metal-insulator phase transition device to control a jump current flowing through the abrupt metal-insulator phase transition device. According to the above current control circuit, the abrupt metal-insulator phase transition device can be prevented from being failed due to a large amount of current and thus the current-jump-control circuit can be applied in various application fields.
    Type: Application
    Filed: June 10, 2004
    Publication date: May 12, 2005
    Inventors: Hyun Kim, Doo Youn, Kwang Kang, Byung Chae, Yong Lim, Seong Kim, Sungyul Maeng, Gyungock Kim