ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,576, issued on March 25, was assigned to HITACHI HIGH-TECH Corp. (Tokyo).

"Biochemical cartridge and biochemical analysis device" was invented by Michiru Fujioka (Tokyo), Sakuichiro Adachi (Tokyo), Toshiaki Hiratsuka (Tokyo) and Asami Terakado (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Since a few kilovolts of an application voltage is necessary to take in a biological sample, an EWOD electrode, for example, is destroyed, and the electrode becomes non-reusable for moving a droplet. Therefore, an object of the present invention is to provide a biochemical cartridge usable for multiple times for taking in a biological sample by a capillary...