ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,355, issued on June 17, was assigned to FUJIKIN Inc. (Osaka, Japan).
"Pressure control device" was invented by Kaoru Hirata (Osaka, Japan), Kouji Nishino (Osaka, Japan), Katsuyuki Sugita (Osaka, Japan), Shinya Ogawa (Osaka, Japan) and Keisuke Ideguchi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure control device includes a pressure control valve, a flow resistance provided downstream of the pressure control valve, a first pressure sensor for measuring a gas pressure between the pressure control valve and the flow resistance, a second pressure sensor for measuring a gas pressure downstream of the flow resistance, and a calcul...