ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,966, issued on June 3, was assigned to KIKUSUI SEISAKUSHO LTD. (Kyoto, Japan).
"Powdery-material feeding device" was invented by Shinsuke Fushimi (Kyoto, Japan), Hideyuki Nishimura (Kyoto, Japan) and Yuuya Kawai (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A powdery-material feeding device includes a controller configured to selectively conduct constantly keeping-control of constantly keeping rotational speed of a motor, current or voltage applied to the motor without any change as a manipulated variable for a predetermined period, or feedback-control of repetitively obtaining a difference between a discharge flow rate of the powdery ...