ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,798, issued on Oct. 7, was assigned to FUJIKIN Inc. (Osaka, Japan).
"Diaphragm valve and flow rate control device" was invented by Kohei Shigyou (Osaka, Japan), Takashi Hirose (Osaka, Japan), Takahiro Matsuda (Osaka, Japan) and Kazunari Watanabe (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A diaphragm valve, which is miniaturized while ensuring a required flow rate and has improved assemble workability and maintainability, includes a body defining a flow path; a diaphragm provided on a bottom surface of an accommodation recess; a fixing ring screwed with a screw portion formed on an inner peripheral surface of the accommodation recess...