Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ZHOU JUNTIAN and FUCHIWAKI Ohmi,Development of Δ-type Self-propelled Robot Using Standing Wave Type Piezoelectric Ultrasonic Motor,The Proceedings of the Symposium on Micro-Nano Science and Technology,2432-9495,The Japan Society of Mechanical Engineers,2019,2019.10,0,19am3PN315,https://cir.nii.ac.jp/crid/1390566775136344960,https://doi.org/10.1299/jsmemnm.2019.10.19am3pn315