ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,640, issued on Jan. 20, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Analysis system" was invented by Kengo Aoki (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A field flow fractionator (FFF device) 1 classifies particles in a liquid sample by applying a field to a liquid sample supplied from a sample injection device 5. A detector 6 detects the particles in the liquid sample classified by the FFF device 1. A bypass flow path 8 supplies the liquid sample from the sample injection device 5 to the detector 6 without via the FFF device 1. A rotary valve (flow path switching unit) 4 switches a flow path to guide the liquid sample from t...