ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,121, issued on June 23, was assigned to Hitachi Industrial Equipment Systems Co. Ltd. (Tokyo).
"Stationary induction electric apparatus" was invented by Chie Kobayashi (Tokyo), Naoyuki Kurita (Tokyo), Kohei Sato (Tokyo), Toshiaki Takahashi (Tokyo) and Hikaru Nakashima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a static induction electric apparatus capable of improving smoothnesses of magnetic flux distributions inside iron cores. A stationary induction electric apparatus including wound iron cores and a winding, wherein each of the wound iron cores is a laminated body of magnetic materials that are lap-joined and at leas...