US Patent Issued to HYUNDAI MOTOR, KIA, YOUNGSHIN PRECISION on May 27 for "Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same" (South Korean Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,664, issued on May 27, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea), KIA Corp. (Seoul, South Korea) and YOUNGSHIN PRECISION Co. LTD. (Gyeongju-si, South Korea).

"Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same" was invented by Hak Soo Kim (Seoul, South Korea), Go Woon Jung (Hwaseong-si, South Korea), Jin Hyeon Lee (Seongnam-si, South Korea), Seung Yong Shin (Gyeongju-si, South Korea), Seung Woo Lee (Gumi-si, South Korea) and O Su Jang (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cam ring and plate module for vehicle vacuum pumps in which, when an oxide layer formed th...