ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,258, issued on June 17, was assigned to HITACHI HIGH-TECH Corp. (Tokyo).
"Dispensing device and method" was invented by Daisuke Hara (Tokyo), Toshiki Yamagata (Tokyo) and Masashi Shibahara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention determines whether or not a mounted tip and a dispensing amount match with each other in order to prevent contamination in a dispensing device. The present invention is provided with a pipette mechanism 108, 109 that performs suction and discharge, a motor 102 that drives the pipette mechanism, and a pressure sensor 113 that detects a pressure of the pipette mechanism. A dispensing tip 110...