HOYA Corp. PENTAX Imaging Systems Division
3F Helios II BLDG. 1-12-11, Funado, Itabashi-ku, Tokyo 174-0041
MB ( Middle Basement ) Floor, Shinjuku Center Building, 1-25-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo 163-0690 Japan
Pearl Bldg. 2/F, 17-9, Minami-Senba 1-chome, Chuo-ku, Osaka 542-0081