ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,336, issued on Feb. 11, was assigned to SHIMADZU Corp. (Kyoto, Japan).
"Sample introduction device" was invented by Akira Aono (Kyoto, Japan), Shota Hata (Kyoto, Japan), Naru Maruoka (Kyoto, Japan) and Hideki Sato (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switching mechanism 110 can perform switching to a pressurized state in which gas is supplied from a pipe 203 to an insertion tube 101, or a derivation state in which gas in a head space 23 that is pressurized is derived from the insertion tube 101 to the pipe 207 via a collection unit 104. The switching mechanism 110 includes a discharge valve 103 that puts the insertion tube ...