ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,237, issued on July 1, was assigned to NEC Corp. (Tokyo).
"Atomic oscillator" was invented by Kenta Matsumoto (Tokyo) and Takahiro Fujisaku (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An atomic oscillator of the present disclosure includes: a gas cell in which an alkali metal atom is encapsulated; a light generating unit emitting emission light onto the gas cell; a light detecting unit detecting transmitted light passed through the gas cell; and a control device determining a resonance frequency of the emission light based on a light amount of the detected transmitted light. The control device stores correspondence information in which a fe...