Aluminum electrolytic capacitors are used in a wide range of fields such as household electric appliances, information and communication equipment, industrial machinery, and automobiles.

Kohoku Kogyo is the first company in Japan to have succeeded in complete automation of complicated processes such as welding and press process for different types of metals such as iron, copper or aluminum utilized in manufacturing of various lead terminals for aluminum electrolytic capacitors. We have been refining our technologies since the initial production.