ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,757, issued on Feb. 10, was assigned to HITACHI HIGH-TECH Corp. (Tokyo).
"Method for adjusting pressure sensor and liquid chromatography analyzer" was invented by Shota Aoyagi (Tokyo), Daisuke Akieda (Tokyo) and Sho Iwasa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid chromatography analyzer acquires a first output value P1 of a pressure sensor measured by opening a flow passage to the atmosphere or by installing, in a column installation portion, a first column that is not filled with a filler, acquires a second output value P2 of the pressure sensor measured by installing a second column having a known pressure resistance Ps in the...