1. R&D Headquarters, Canon Inc., Ohta, Tokyo 146-8501, Japan
2. Japan Synchrotron Radiation Research Institute (JASRI), Sayo-cho, Hyogo 679-5198, Japan
3. Center of Crystal Science and Technology, University of Yamanashi, Kofu, Yamanashi 400-8510, Japan
4. Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8510, Japan