1. Osaka kyoiku University Osaka Japan
2. Department of Mechanical and Physical Engineering Osaka City University Osaka Japan
3. Division of Math, Sciences, and Information Technology in Education Osaka Kyoiku University Osaka Japan
4. Department of Applied Chemistry Osaka Institute of Technology Osaka Japan
5. Industrial Technology Center of Okayama Prefecture Okayama Japan
6. Mechanical CAD Unit Polytechnic University Tokyo Japan