Tribology Online, 7, 3 (2012) 147-151. ISSN 1881-2198 DOI 10.2474/trol.7.147 Copyright © 2012 Japanese Society of Tribologists 147 Short Communication Frictional Coefficient under Banana Skin Kiyoshi Mabuchi1) *, Kensei Tanaka2) , Daichi Uchijima2) and Rina Sakai1) 1) School of Allied Health Sciences, Kitasato University 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan 2) Graduate