OPTORUN Co., Ltd. engages in the manufacture, distribution, import, and export of vacuum coating machines, peripheral equipment and units using vacuum coating products. It develops optical thin film coaters (OTFC) and general-use optical thin film equipment (GENER). It also offers reactive plasma deposition systems, multilayer optical coaters, and AR vacuum coaters. The company was founded by Son Daiyu on August 25, 1999 and is headquartered in Tokyo, Japan.