ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,417, issued on May 20, was assigned to DAICEL Corp. (Osaka, Japan).

"Gas generator and airbag device" was invented by Nobuyuki Katsuda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a gas generator, a plurality of gas discharge ports include a plurality of first gas discharge ports and one or a plurality of second gas discharge ports having an opening pressure higher than an opening pressure of the first gas discharge ports. An opening pressure of the first and second gas discharge ports are set, such that only the plurality of first gas discharge ports of the plurality of gas discharge ports are opened by the pressure of the gas when the ...