ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,933, issued on March 31, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Preparative separation and purification device and preparative separation and purification method" was invented by Tomoyuki Yamazaki (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A target component is collected using a preparative separation and purification device having a holder for holding a trap column in which the target component has been captured, a liquid feeder for feeding a first solvent having compatibility with the water remaining in the trap column and a second solvent having low compatibility with water and high compatibility with the first solvent...