ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,549, issued on March 4, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea), KIA Corp. (Seoul, South Korea) and SINTERON (Hwaseong-si, South Korea).
"Piston pin and manufacturing method thereof" was invented by Haksoo Kim (Seoul, South Korea), Byung Chan Kang (Suwon-si, South Korea), Dong Wook Park (Hwaseong-si, South Korea) and Myeong Inn Na (Osan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piston pin includes a pipe-shaped main body made of an iron-based sintered alloy. The piston pin is installed to penetrate an upper end of the connecting rod and the piston and the piston pin has an eccentric mass center in a circumfe...