ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,429, issued on May 13, was assigned to CANON MEDICAL SYSTEMS Corp. (Tochigi, Japan).

"Superconducting electromagnet device" was invented by Taisaku Gomyo (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The superconducting electromagnet device includes a superconducting coil, a refrigerant container, a refrigerator, a heat exchanger, and a cooling cylinder. The refrigerant container accommodates refrigerant that cools the superconducting coil. The refrigerator includes a refrigeration stage. The heat exchanger is arranged inside the refrigerant container and connected to the refrigeration stage to cool refrigerant gas vaporized from the refrige...