ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,926, issued on Feb. 17, was assigned to Yamaha Robotics Co. Ltd. (Tokyo).
"Ultrasonic horn" was invented by Hiroshi Munakata (Tokyo) and Takuya Adachi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic horn includes: a vertical vibration generating portion in which a first ultrasonic vibrator is mounted inside; a horn portion extending forward from the vertical vibration generating portion, amplifying an ultrasonic vibration generated by the vertical vibration generating portion, and to which a capillary is mounted at a front end portion; and a torsional vibration generating portion extending rearward from the vertical vibration gen...