ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,853, issued on April 22, was assigned to Woo Hee Choi (Seoul, South Korea).
"Non-rotating type direct current generator" was invented by Woo Hee Choi (Seoul, South Korea), Hyung Ju Yoo (Seoul, South Korea), Nan Kyung Hwang (Seoul, South Korea) and Sung Kwon Yu (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a non-rotating direct current electric generator capable of generating a direct current with high efficiency without rotating a field magnet or an armature. The non-rotating direct current electric generator according to the present invention is a direct current electric generator generating a di...