Company Guide

Trading name SIGMAKOKI CO.,LTD.
Established April 1977
Listing Tokyo Stock Exchange (Standard Market)
Paid-in capital ¥2,623 million
Facilites Head Office / Hidaka Plant
17-2, Shimotakahagi-shinden, Hidaka-shi, Saitama 350-1297
TEL: +81-42-985-6221 / FAX: +81-42-985-6561
Tokyo Head Office
5F, SIGMA KOKI Tokyo Head office 1-19-9,Midori, Sumida-ku, Tokyo, 130-0021
TEL: +81-3-5638-8228 / FAX: +81-3-5638-6550
E-mail: international@sigma-koki.com
Osaka Branch
6F,TAIYO center building,4-9-28Nishi-Nakajima,Yodogawa-ku,Osaka 532-0011
TEL: +81-6-6307-4835 / FAX: +81-6-6307-4834
Kyushu Sales Office
1-17-25 Hakata-eki-higashi, Hakata-ku, Fukuoka, 812-0013
TEL: +81-92-481-4300 / FAX: +81-92-481-4310
Noto Plant
61-2 Wakabadai, Shika-machi, Hakui-gun, Ishikawa 925-0375
TEL: +81-767-38-1114 / FAX: +81-767-38-1651
Technology Center
1-1 Yatsukaho,Hakusan-shi, Ishikawa 924-0838
TEL: +81-76-274-6100 / FAX: +81-76-274-6103
Representative President & CEO Yosuke Kondo
Employees 367 (as of May 31, 2023)
Manufacturing equipment 5-axis Machining Center, CNC Lens Polishing Machine, Optical coatingmachine, Ring Polisher, Near Field Etching system, CNC Lathe Machine, Ultrasonic Cleaning Machine, Magneto-Rheological Finishing, Wire EDM machine, Machining center, Grinding machine, NC mold polisher, NC engraver, Surface generator, Polishing machine (Lenses, Prisms, Laser crystals), Lapping machine, Precision slicing machine, Others
Testing and measuring equipment Spectrophotometer, Scanning Electron Microscope, 3D Optical Surface profiler, Laser Calibration System, Atomic Force microscope, Focometer, Zygo® Laser Interferometer, 3D Measurement Machine, Cavity Ring-Down, Dispersion Measurement System, Surface Roughness Tester, Autocollimator, Hardness meter, Eccentricity measuring instrument, Composition evaluation device, High performance cleanrooms, Others
Affiliates OptoSigma Corporation
OptoSigma Europe S.A.S.
Shanghai Sigma Koki Co.,Ltd.
OptoSigma Southeast Asia Pte. Ltd.
LMS CO., Ltd.
TAC COAT CO.,Ltd.
Company activities Opto-Mechanics / Manual Stages & Holders (Over 3,400 types)
Stages, Holders, Bases, Rods, Poles, Clamps, Cage systems Stages, etc.
Optics / Coating Products (Over10,000 types)
Multi-Element Optics, Mirrors, Beam splitters, Filter, Lenses, Prisms, Polarizers,Laser crystals, Nonlinear crystals, Substrates, Windows, etc.
Motion Control Application Systems (Over 350 types)
Automatic positioning devices, Optical measurement devices, Software for positioning and measurement
Laser System Products
Optical modules、Lens units、Laser processing systems, Laser application system products, etc.
Bio-Medical Related Products
Micromanipulation system, motorized stage system for microscope, Core Unit for Microscopy, Bio and medical devices, etc.
Optical Application System Products
Optical Fiber Alignment Systems, Optical systems for Observation, Contracted & Custom-made products

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