ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,460, issued on Dec. 2, was assigned to Yamaha Robotics Co. Ltd. (Tokyo).
"Acoustic foreign matter removal device" was invented by Michael Kirkby (Tokyo), Ysmaldo Jose Landaez Garcia (Tokyo) and Hiroshi Munakata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic foreign matter removal device includes a stage, an acoustic head, and a movement mechanism. The acoustic head has a plurality of ultrasonic speakers and a casing22. A plurality of ultrasonic waves generated from the plurality of ultrasonic speakers are concentrated in a gap between the casing and a holding surface of the stage to form a low pressure region; and foreign matter ad...