ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,843, issued on Sept. 22, was assigned to CANON K.K. (Tokyo).
"Superconducting magnet and MRI apparatus" was invented by Takehiro Shibuya (Nasushiobara, Japan) and Hiromi Kawamoto (Yaita, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, a superconducting magnet includes: at least one primary superconducting coil configured to generate a primary magnetic field; at least one secondary superconducting coil configured to generate a secondary magnetic field in a direction opposite to a direction of the primary magnetic field; and a superconducting shim coil configured to surround part or all of an outer surface of at least one of t...