Domestic Office Location
Sumitomo Electric Device Innovations Inc. Yokohama(HQ)
1, Kanai-cho, Sakae-ku, Yokohama, kanagawa 244-0845, Japan
Tel: +(81)-45-853-8150 Fax: +(81)-45-853-8173
Sumitomo Electric Device Innovations Inc. Yamanashi Plant
1000 Kamisukiawara, showa-cho, Nakakoma-gun,
Yamanashi 409-3883, Japan
Tel: +(81)-55-275-4411 Fax: +(81)-55-268-0242