Ohashi, Tomofumi
Shibata, Hitoshi
Futami, Shigeru
Sato, Ryuta
Article History
Received: 21 October 2020
Revised: 22 December 2020
Accepted: 31 December 2020
First Online: 26 February 2021
Compliance with Ethical Standards
:
: This study is an unpublished result from Ph.D. course of T. Ohashi. T. Ohashi had been taught by R. Sato during Ph.D. course in Kobe University. T. Ohashi and H. Shibata are employees of THK Co., Ltd, and S. Futami is a technical advisory role of THK Co., Ltd. This study was conducted with a research fund from THK Co., Ltd.