OS Seiko is a company specializing in the manufacturing and design of industrial parts, automotive parts, test sockets for semiconductor, and other electronic products.

Our products are used in various fields from IT, IC, automobiles, aircraft to medical.
We manufacture products that are in demand around the world with technology that supports 2 nanometer pattern widths.

Since our establishment in 1994, we have been manufacturing parts that meet the needs of the times. Currently, more than 60% of our sales are made up of automobile parts from the world’s automobile manufacturer, BOSCH. In recent years, the demand for semiconductor jigs for Apple mobile phones, CT scans and MRIs for medical equipment, and optical connector parts for aircraft has also increased. For products that require special processing machines, we meet customer requirements in cooperation with domestic and overseas partner companies.

In addition to Kyocera, with whom we have built a relationship of trust for more than 30 years, we also receive high praise from overseas manufacturers with whom we have direct business relationships. The reason for this is that we do not “make what we are told”, but rather proactively make proposals that lead to better performance and lower costs. Our strength lies in the fact that we have a team of employees who have deep knowledge of metals and machinery and who are able to think “beyond” the parts.

Our future development is focused on the global market. Last year, we built a new plant and expanded our facilities to handle products used in fuel cells for the U.S. market. We established a branch office in Hawaii, U.S.A. at the end of last year.

Saburo Okamura
President
OS Seiko Co., Ltd.