ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,464, issued on Oct. 20, was assigned to EAGLE INDUSTRY Co. LTD. (Tokyo).
"Valve and valve assembly method" was invented by Kenta Furukawa (Tokyo), Naoki Nishimura (Tokyo) and Yu Deguchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve capable of maintaining a stable fixed state between a retainer and a casing for a long period of time and a method of assembling the valve are provided. A retainer includes a cylindrical portion which has a seat surface for a biasing member and an expanded diameter portion which expands radially outward in a tapered shape from one axial end of the cylindrical portion on a side of a casing, and a caulking e...