Thank you for visiting the official website of Koshin Kogaku Co., Ltd.  We have  been responding to many kinds of customer’s needs since the foundation in 1970 with the core competence based on the vacuum evaporation technology.  We also have developed the related fabrication processes along with the coating technology in our multitude of achievements.  We will continuously offer the optimal solutions to the customers in a variety of areas who need the products in which optical technologies are applied.

Yoshitaka Usui, President