Sumitomo Seimitsu Co., Ltd.

Sumitomo Seimitsu Co., Ltd. is a Japanese precision engineering company within the Sumitomo Precision Products group, engaged in a broad range of high-technology businesses. Its activities cover aerospace products, heat exchangers, hydraulic control equipment, ozone generation systems, MEMS and semiconductor manufacturing equipment, MEMS gyro sensors, inertial systems, and MEMS foundry and device services.

The company maintains active research and development, with recent announcements including a liquefied hydrogen heat exchanger that cleared demonstration testing at real-environment level in Japan, an established mass production system of 30,000 units per year for an air-cooled heat exchanger for data centers, and significantly enhanced microfabrication capability through newly introduced photolithography equipment. Headquartered in Japan with domestic and overseas locations, Sumitomo Seimitsu pursues its corporate philosophy of creating the world's finest precision before anyone else.