Since our establishment in 1972, Seikoh Giken has developed and supplied markets with highly original products centered on leading-edge processing technologies. Among other achievements, in the 1980s, as a global first, Seikoh Giken developed optical disc molds and optical connector polishing machines whose performance and quality were highly praised by customers in Japan and overseas, thus establishing the position of Seikoh Giken as a top-ranking manufacturer.

Through these products, the Company greatly contributed to the proliferation of optical disc applications such as CD, DVD, and Blu-ray and likewise supported the growth of the Internet through the volume production of optical communication components.

Starting in 2000, the market environment radically changed. In this setting, Seikoh Giken group acquired technical resources in the form of precision processing, precision molding, and

Based on our core technologies in precision molds and precision processing, we provide customers with injection molds enabling the volume production of molded resin parts, which is generally considered difficult, and high precision metal processed parts.

At the same time, our various molding technologies such as injection molding using resin, press molding of metal parts, and insert molding combining resin and metal, etc., allow Seikoh Giken to supply automotive parts, smartphone parts, cell culture containers and microchannel chips, and other products for a wide range of industries