ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,663, issued on April 22, was assigned to EAGLE INDUSTRY Co. LTD. (Japan).
"Fluid circuit" was invented by Yoshiyuki Shimada (Tokyo), Koji Sato (Tokyo), Yuta Okamoto (Tokyo), Tomoki Seki (Tokyo) and Tatsuhiro Arikawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A first switching valve that switches between flow passages which allow communication between a first pressure-receiving chamber and a fluid supply device side and flow passages which allow communication between a second pressure-receiving chamber and the fluid supply device side, according to a change in a fluid pressure to be applied, and a second switching valve that is switched to ...