ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,680, issued on July 8, was assigned to ARKRAY Inc. (Kyoto, Japan).

"Particle recovery device and particle recovery method" was invented by Yukio Watanabe (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A particle recovery device for recovering particles contained in a liquid sample, the particle recovery device comprising: a flow cell having a flow path through which the liquid sample flows; standing wave generating means that applies, in the flow path, an ultrasonic wave that sweeps between a second frequency that is a frequency lower than a first frequency that is a frequency of the ultrasonic wave that generates a standing wave having...