ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,423, issued on Oct. 20, was assigned to KYB Corp. (Tokyo).

"Valve and shock absorber" was invented by Yuki Kuroiwa (Tokyo), Takao Murata (Tokyo) and Takeshi Yasui (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Valves of the present invention includes: a valve seat member equipped with a port and a seat portion surrounding an outlet end of the port; and an annular leaf valve whose inner periphery is immovably laid on top of the valve seat member and whose outer periphery to be seated on or spaced apart from the seat portion, wherein an external shape of the leaf valve is larger than an internal shape of a seat surface of the seat portion or la...