ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,421, issued on May 6, was assigned to SHIMADZU Corp. (Kyoto, Japan).
"Gas chromatograph" was invented by Kasumi Sasaki (Kyoto, Japan) and Yuji Nakama (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a gas chromatograph capable of efficiency circulating air in a column oven. The gas chromatograph is provided with a column oven, a heater, a fan, and a cylindrical member. The column oven accommodates a column. The heater heats the inside of the column oven. The fan has a blade that rotates about a rotation axis in the column oven, and sends air toward the column provided in the axial direction that is a direction along the rotat...