ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,688, issued on May 20, was assigned to SHINDENGEN ELECTRIC MANUFACTURING Co. LTD. (Tokyo).

"Control circuit and power source device" was invented by Hideyuki Ono (Saitama, Japan) and Shigeru Hisada (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a control circuit which can discharge a charge stored in an X capacitor with certainty even when an alternating current input voltage largely fluctuates. The control circuit for controlling a discharge of an X capacitor C100 connected between power source lines AC1 and AC2 having different polarities of an alternating current of an AC-DC convertor which receives inputting of the al...