ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,133, issued on Feb. 10, was assigned to Inter-University Research Institute Corporation, National Institutes of Natural Sciences (Tokyo).
"Isolator" was invented by Takafumi Kojima (Tokyo), Sho Masui (Tokyo) and Yoshinori Uzawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "In an isolator, frequency mixers are connected to each other in tandem, a local oscillator is connected to both of the frequency mixers and configured to input a local signal with the same frequency to both of the frequency mixers, the frequency of the signal input to one of the frequency mixers is up-converted by the local signal, then input to the other of the frequency ...