Office Address Headquarters : Kamiyacho Central Place, 3-13, Toranomon 4-Chome, Minato-Ku, Tokyo 105-8447, Japan LPG Research Laboratory : 2-16-4, Tadao, Machida-Shi, Tokyo 194-0035, Japan LPG Equipment Certification Office : The High Pressure Gas Safety Laboratory : Hokkaido Branch Office : Sumitomo Seimei Sapporo Bldg., 2-12, Kita 5-Jo Nishi 5-Chome, Chuo-Ku, Sapporo-Shi, Hokkai-Do 060-0005, Japan Tohoku Branch Office : Uesugi NS Bldg., 3-3-21, Uesugi, Aoba-Ku, Sendai-Shi, Miyagi 980-0011, Japan Chubu Branch Office : Nagoya Shoko Kaigisho, 2-10-19, Sakae, Naka-Ku, Nagoya-Shi, Aichi 460-0008, Japan Kinki Branch Office : South Forest Bldg., 1-4-19, Minamimorimachi, Kita-Ku, Osaka-Shi, Osaka 530-0054, Japan Chugoku Branch Office : Park Side Bldg., 2-8-4, Ohtemachi, Naka-Ku, Hiroshima-Shi, Hiroshima 730-0051, Japan Shikoku Branch Office : Sunport Business Square, Takamatsu Symbol Tower, 2-1, Sunport, Takamatsu-Shi, Kagawa 760-0019, Japan Kyushu Branch Office : Fukuoka Shoko Kaigisho Bldg., 2-9-28, Hakata-Ekimae, Hakata-Ku, Fukuoka-Shi, Fukuoka 812-0011, Japan