ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,439, issued on June 17, was assigned to JAPAN SCIENCE AND TECHNOLOGY AGENCY (Kawaguchi, Japan).
"Quantum gate device" was invented by Atsushi Noguchi (Koganei, Japan), Alto Osada (Yokohama, Japan) and Yasunobu Nakamura (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum gate device includes a first superconducting circuit which includes at least one of Josephson devices in an annular circuit including a superconducting wire and resonates at a first resonance frequency, a second superconducting circuit which includes at least one of Josephson devices in an annular circuit including a superconducting wire and resonates at a second...