ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,793, issued on Sept. 30, was assigned to Murata Manufacturing Co. Ltd. (Kyoto-fu, Japan).

"Power factor correction switching power supply device" was invented by Hiroyuki Takatsuji (Nagaokakyo, Japan), Tatsuya Hosotani (Nagaokakyo, Japan) and Yuki Ishikura (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power factor correction switching power supply device includes a power factor correction circuit connected to an alternating-current input line, a first half-bridge capacitor circuit connected between lines of the AC input line, a second half-bridge capacitor circuit connected between lines of a direct-current output line that is...