ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,368, issued on Dec. 23, was assigned to FUJI ELECTRIC Co. LTD. (Kawasaki, Japan).
"Laser gas analyzer" was invented by Naoki Takeda (Kawasaki, Japan) and Ikumi Yoshimine (Kawasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A laser gas analyzer includes a light emitting unit including a laser element configured to emit laser light having a target wavelength band including a wavelength of an absorption line spectrum of the target gas, and a modulated light generation unit configured to supply a drive current to the laser element so that the laser element sweeps and modulates the laser light to have the target wavelength band, and a light re...