The Institute of Scientific and Industrial Research (SANKEN) Osaka University Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan Access to SANKEN Please look at access to SANKEN on home page of SANKEN （http://www.sanken.osaka-u.ac.jp/English/). Access to Majima laboratory from the main and sub entrance of SANKEN. Please proceed to the central elevator and take the elevator up to the 4th floor. Please turn to the left (east side) and walk to the east edge of the 4th floor.