Head Office
| Address | Gotanda Kowa Bldg., 1-5, Nishi-Gotanda 8-chome, Shinagawa-ku, Tokyo 141-0031 Japan |
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| Phone | +81-3-5436-0600 |
| Fax | +81-3-5436-0609 |
Yokohama Plant
| Address | 28-2, Hongo 2-Chome, Seya-ku, Yokohama, 246-0015 Japan |
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Shin-Yokohama Plant
| Address | 4206, Ikonobe-cho, Tsuzuki-ku, Yokohama, 224-0053, Japan |
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