ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,382,573, issued on Aug. 5, was assigned to HITACHI HIGH-TECH Corp. (Tokyo).

"Accelerator and particle therapy system" was invented by Takamichi Aoki (Tokyo), Takayoshi Seki (Tokyo) and Yuto Nakashima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "As the ion beam is accelerated, the radii of the closed orbits gradually increase, and the centers thereof move in a direction approaching the peripheral edge portion along a predetermined radial direction of the cavity, and upon reversing the direction of movement, move further toward the center of the cavity. The intensity distribution in the orbital plane of the main magnetic field is designed to reali...