US Patent Issued to NANCHANG ANGKUN on Sept. 15 for "Method and apparatus for measuring rotational speed of satellite disk on MOCVD planetary susceptor" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,556, issued on Sept. 15, was assigned to NANCHANG ANGKUN Co. LTD. (Nanchang, China).

"Method and apparatus for measuring rotational speed of satellite disk on MOCVD planetary susceptor" was invented by Wenyong Huang (Nanchang, China), Tiezhong Ma (Nanchang, China), Hua Yan (Nanchang, China) and Xudong Ni (Nanchang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for measuring a rotational speed of a satellite disk on a MOCVD planetary susceptor includes emitting a beam of laser light on the MOCVD equipment, the laser light irradiating on the planetary susceptor of the MOCVD equipment. As the planetary susceptor is revolving, the laser...