Optimum Design Method for Sub-Reed of an Ultrasonic Motor. - Seiji Aoyagi; Yoshitugu Kamiya; Sakiichi Okabe (J. Robotics Mechatronics, 1991)

Study on the Sheet Escape and Feeding Mechanism Using Ultrasonic Vibration (1st Report) - Design Concept and Its Experimental Investigation -. - Sakiichi Okabe; Yoshitugu Kamiya; Takahiro Oda (J. Robotics Mechatronics, 1993)