1. SM Technical Development Department, SM Business Unit; JEOL Ltd., 1-2 Musashino 3-chome Akishima Tokyo 196-8558 Japan
2. Advanced and Fundamental Technology Center, JEOL Ltd.; 1-2 Musashino 3-chome Akishima Tokyo 196-8558 Japan
3. Biomedical Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Higashi 1-1-1 Tsukuba Ibaraki 305-8566 Japan