ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,385, issued on Dec. 30, was assigned to HITACHI LTD. (Tokyo).
"Power conversion apparatus" was invented by Hiroshi Kamizuma (Tokyo), Hangxian Gao (Tokyo), Tetsuya Kawashima (Tokyo) and Masahiro Seo (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a power conversion apparatus including a first power semiconductor module, a second power semiconductor module, a control circuit for driving the first power semiconductor module and the second power semiconductor module, and liquid-cooling type cooling jackets, wherein the second power semiconductor module is disposed closer to an upper surface in the gravity direction than the first...