| Address | Headquarters 4-3-15 Tamagawa, Setagaya-ku, 5F |
| phone | 03-3709-9181 |
| Business hours | |
| Regular holiday |
Eiken Co., Ltd.
| Address | Headquarters 4-3-15 Tamagawa, Setagaya-ku, 5F |
| phone | 03-3709-9181 |
| Business hours | |
| Regular holiday |