KUROSAWA, K. A Cylindrical Shaped Micro Ultrasonic Motor Utilizing PZT Thin Film. Proceedings of the 10th International Conference on Solid-State Sensors and Actuators (Transducers'99). 1999, 1744-1747
SATO, H. Parallel Beam Gyroscope. Proceedings of the 10th Iternational Conference on Solid-State Sensors and Actuators (Transducers'99). 1999, 1586-1589