ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,024, issued on March 17, was assigned to CKD Corp. (Komaki, Japan).
"Fluid control valve" was invented by Tatsuhito Aoyama (Komaki, Japan) and Shinya Takahashi (Komaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid control valve includes a pressing member, a diaphragm member, and a valve seat. The pressing member presses and deforms the diaphragm member into contact with the valve seat. The valve seat includes a first annular valve seat made of fluorine resin and a second annular valve seat made of heat-resistant resin, which are arranged concentrically adjacent to each other. The heat-resistant resin has a higher deflection temperat...