ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,295, issued on Jan. 28, was assigned to JAPAN SCIENCE AND TECHNOLOGY AGENCY (Saitama, Japan).
"Nonlinear microwave filter" was invented by Yasunobu Nakamura (Tokyo), Shingo Kono (Tokyo) and Kazuki Koshino (Ichikawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "This nonlinear microwave filter is provided with quantum bits that are formed on a circuit board in which target quantum bits are formed which are quantum bits controlled in a superconducting quantum circuit, and that are coupled to a control waveguide to which the target quantum bits are coupled, wherein the distance to a waveguide end in the control waveguide is within a predetermine...