ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,590, issued on May 27, was assigned to Kobe University (Hyogo, Japan) and Murata Manufacturing Co. Ltd. (Kyoto, Japan).
"Zeta potential measurement method and measurement device" was invented by Minoru Mizuhata (Hyogo, Japan) and Izaya Okae (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device are provided for measuring a zeta potential with reproducibility, high reliability and high accuracy, by predicting an equilibrium value from the change over time of a streaming potential. In measurement of the zeta potential of a sample surface using a streaming potential method, an external pressure is changed in a step-wise mann...