Our leading-edge technologies provide “Connection and Safe & Secure Environment” in Business


For 70 years since the foundation, we have been providing the world’s highest level products of optical connectors, surge protection devices, super precise molding products, UPS with RIB, and welding machines to customers around the world.
Our keyword is “Connection and Safe & Secure Environment”.

We are the professionals who change ourselves along with the customers’ requests

In the field of optical connectors, the customers’ requirements will be expanding from FTTH to data center wirings and to optical interconnect of circuit boards dramatically.
As the application field increases, the new problem to be solved appears.

We would like to be the professionals who confront the issues seriously, pursue the technology to solve the customers’ problems and provide customer satisfaction far more than expected.

We are happy to make efforts to be the professionals who change and make progress along with the customers.

CEO Tatsuya Yonekawa