ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,559, issued on July 22, was assigned to SHIMADZU Corp. (Kyoto, Japan).
"Gas chromatograph device" was invented by Masayuki Okada (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas chromatograph device is provided with a column oven, an opening-and-closing mechanism, a cooling fan, a control chamber, and a switching mechanism. The column oven includes an air intake port and an air outlet port. The opening-and-closing mechanism opens and closes the air intake port and the air outlet port. The control chamber is provided outside the column oven. The control chamber is communicated with the inside of the column oven via the air intake po...