1. Tribology and Surface Laboratory, 4-2-38 Kamido, Morioka, Iwate 020-0125, Japan
2. Chemistry, Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
3. Department of Engineering for Future Innovation, National Institute of Technology, Ichinoseki College, Ichinoseki, Iwate 021-8511, Japan