Patents by Inventor Cang Keun Lee

Cang Keun Lee 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).

  • Single electron based flexible multi-functional logic circuit and the transistor thereof
    Patent number: 7746118
    Abstract: The present invention relates to a flexible multi-functional logic circuit which switches a current direction to a serial or parallel direction using at least two single electron transistors (SETs) having the same pattern and as many field effect transistors (FETs) as the number of the single electron transistors and performs operations on multi-valued signals using Coulomb oscillation that is the unique characteristic of SET to enable conversion of a single logic circuit to four basic logic circuits of NAND, OR, NOR and AND gates and a device using the same.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 29, 2010
    Assignee: Changbuk National University Industry-Academic Cooperation Foundation
    Inventors: Jung Bum Choi, Cang Keun Lee, Sang Jin Kim, Jae Ho Hwang