ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,925, issued on Feb. 3, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Column oven and chromatography" was invented by Koji Numata (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A column oven comprises: a hollow housing; an analysis column arranged in the housing and allowing circulation of a mobile phase in the analysis column; a heating portion configured to heat air; a swirl flow generation portion configured to discharge, as a swirl flow, the air heated by the heating portion into the housing; and a throttle portion configured to throttle the swirl flow when the swirl flow is discharged into the housing. The throttle portion has mul...