ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,944, issued on March 18, was assigned to SEMES Co. LTD. (Chungcheongnam-do, South Korea).
"Meniscus measuring apparatus and method, substrate processing apparatus" was invented by Han Lim Kang (Seoul, South Korea), Suk Won Jang (Gyeonggi-do, South Korea), Jae Duck Lee (Gyeonggi-do, South Korea) and Won Yong Jin (Jeollabuk-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A meniscus measuring method capable of quickly and accurately measuring meniscus positions in a plurality of nozzles of an inkjet head can be provided. The meniscus measuring method comprises providing a head unit capable of discharging ink through a plurality of nozzl...