Sigma Koki Co 7713.T · JPY

Its shares trade on Tokyo Stock Exchange under the ticker 7713.T. It has been listed since 21 November 1996. In the fiscal year to 31 May 2026, it reported revenue of ¥11.44bn and net income of ¥831.2m. At that date it held total assets of ¥21.21bn and shareholders' equity of ¥18.61bn.

Sigma Koki Co., Ltd. is engaged in the manufacture, sale and maintenance services of optical products and systems. The company is headquartered in Hidaka-Shi, Saitama-Ken. The firm has two business segments. The Elemental Component segment manufactures and sells basic optical equipment, including stages, holders and base parts; automatic applied products, such as automatic alignment and attitude determining units, optical measurement and control units, and measurement and control software, as well as optical element and film products, such as multi-element optics, mirrors, beam splitters, filters, lenses, prisms, polarizers, circuit boards and windows. The System Product segment offers optical system products, such as lens units, laser processing systems, laser application products, micromanipulation systems, XY automatic systems for microscope, as well as commissioned custom products, among others.

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• Mr. Yosuke KondoPresident, Representative Director, since 2006
• Mr. Yasuyuki IshiiChief Director of Administration, Director of Accounting, Director, since 2020
• Mr. Yoshinori TabataChief Director of Production, Director, since 2006
• Ms. Yumiko MatsuoIndependent Director
• Mr. Makoto NozakiIndependent Director
• Mr. Tsutomu OzawaIndependent Director
• Mr. John SetonIndependent Director

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