H.Ueda Research Fellow Depart ment of Mechaical Engineering Osaka Sangyo University Osaka Japan,M.Kagotani T.Koyama Professor Depart ment of Mechanical Engineering Osaka Sangyo Univesity Osaka Japan,M.Kagotani T.Koyama Professor Depart ment of Mechanical Engineering Osaka Sangyo Univesity Osaka,Japan,M.Nishioka President Unitta Company Osaka,Japan,