Fuji Seiko Co., Ltd. Fuji Seiko Co., Ltd. is a specialized manufacturer of various sensors and optical fiber measurement. Fuji Seiko Co., Ltd. strives to protect the environment and always strives to manufacture products that comply with the RoHS regulations and REACH . Latest update date: October 31, 2012 ■ What's New 2010.06.23 Partially revised site map etc. 2010.06.18 Fuji Seiko HP renewal Handling of personal information 　Inquiry 　site map Copyright (C) 2000-2010 Fujiseikou Corporation All Rights Reserved.