ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,082, issued on July 21, was assigned to NHK SPRING Co. LTD. (Yokohama, Japan).

"Coiling machine, method for manufacturing coil spring, and coil spring" was invented by Takuya Sato (Yokohama, Japan), Yuichiro Yamauchi (Yokohama, Japan), Takeshi Furuse (Yokohama, Japan) and Ryo Tanaka (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coiling machine includes a laser heating machine configured to irradiate a wire formed into a helical shape with laser light to thereby heat a part of the wire, and cutting components configured to cut a portion of the wire after the irradiation of the laser light is stopped, a temperature of the portion b...