ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,391, issued on June 30, was assigned to Taijing Technology Co. Ltd. (Suizhou, China).
"Ultraminiature tuning fork quartz crystal having groove groups for filling conductive silver glue and resonator using same" was invented by Dayong Huang (Suizhou, China), Yu Mao (Suizhou, China), Xiangmiao Huang (Suizhou, China) and Xiaoming Sun (Suizhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an ultraminiature tuning fork quartz crystal and a resonator, the ultraminiature tuning fork quartz crystal comprises a tuning fork assembly, the tuning fork assembly comprises a fixing block, two vibrating parts and a connecting part, both of the ...