Sumitomo Drive Technologies

Sumitomo Drive Technologies is a globally recognized leader in power transmission and controls, rooted in a 1939 partnership that followed the invention of the Cyclo® reducer in 1925. As a key division of Sumitomo Heavy Industries, Ltd., whose origins trace back to 1691, it continues to grow through strategic acquisitions and global integration, delivering advanced technologies for evolving industrial needs. Sumitomo Heavy Industries, Ltd. began in 1691 as Izumi-ya with copper mining and expanded into equipment manufacturing by 1888. After several name changes, it became Sumitomo Machinery Co., Ltd. in 1934. The 1969 merger with Uraga Heavy Industries formed Sumitomo Heavy Industries, Ltd., which today focuses on innovation in manufacturing and advanced technologies such as power transmission, precision control, semiconductors, and plastics machinery.