US Patent Issued to HORIBA STEC on March 17 for "Flow rate control valve, manufacturing method of flow rate control valve, and flow rate control apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,021, issued on March 17, was assigned to HORIBA STEC Co. Ltd. (Kyoto, Japan).

"Flow rate control valve, manufacturing method of flow rate control valve, and flow rate control apparatus" was invented by Kazuya Shakudo (Kyoto, Japan), Shigeyuki Hayashi (Kyoto, Japan) and Masayuki Nagasawa (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flow rate control valve includes a valve seat portion, a valve member, a driving portion, and a support member supporting the valve member via a diaphragm portion. The valve member has an opposite face opposite from a valve seat face with respect to a seat face and a circumferential face connecting toget...