ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,495, issued on Jan. 27, was assigned to Hitachi High-Tech Corp. (Tokyo).

"Preprocessing device" was invented by Kazuma Tamura (Tokyo) and Hiroshi Watanabe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preprocessing device that carries out a dispensing process for aspirating a liquid sample accommodated in a sample container, and subsequently discharging and dispensing the sample into another sample container, the preprocessing device comprising: a dispensing nozzle; a dispensing nozzle tip detachably provided to the distal end of the dispensing nozzle; a disposal box in which the dispensing nozzle tip is disposed of after having been remov...