Sigma Optical Co., Ltd.

Sigma Optical Co., Ltd. was established in Tanamame, Hidaka Town (now Hidaka City), Saitama Prefecture, to manufacture and sell laser optical equipment.

Company product specifications and price list (1981)

New headquarters and factory were built and relocated to Harajuku, Hidaka Town (now Hidaka City), Saitama Prefecture.

Company product selection guide (1983)

First edition of the comprehensive catalog for standard products was issued. Direct sales began.

Opened a Tokyo sales office in Narusawa, Itabashi-ku, Tokyo.

Established the Noto factory in the Noto Core Industrial Complex, Ishikawa Prefecture, and was designated as a grant‑eligible company under Ishikawa's Advanced Industry Ordinance.

Built and relocated the headquarters and main factory to Shimo Takahagi Shinta, Hidaka City, Saitama Prefecture.

Established the Osaka Sales Office (now Osaka Branch) in Nishi-Nakajima, Yodogawa-ku, Osaka City. Strengthened sales in the Kansai region.

Opened the Kanazawa Technology Center in Tomiuchi Town, Kanazawa City, Ishikawa Prefecture.

Established Shanghai Xigema Optical Machinery Co., Ltd. with the purpose of mass-producing laser optical polishing products.

Moved the Tokyo Sales Office to Higashi-Nippori, Arakawa-ku, Tokyo. Strengthened sales through expanded space.

Established Optosigma Corporation with the primary purpose of manufacturing and selling optical equipment in the United States.

Opened a technology center in Yatsukaho, Matsunoshin City (now Shirakawa City), Ishikawa Prefecture. Integrated the Kanazawa Technology Center.

Registered shares with the Japan Securities Dealers Association.

Completed the new factory of Shanghai Xigema Optical Machinery Co., Ltd. (Shanghai, China). Commenced full operation.

Established Takko Co., Ltd. in Iida City, Nagano Prefecture, jointly invested with Natsume Optical Co., Ltd., to expand the production system for optical film products.

Obtained ISO 14001:1996 certification for the technology center.

Obtained ISO 9001:1994 certification for headquarters and factory.

Obtained ISO 9002:1994 certification for the technology center and ISO 9001:1994 certification for the Noto factory. Acquired the Tokyo Headquarters Building (Sumida-ku) to strengthen and expand the sales promotion department and headquarters functions.

Signed a basic capital and business alliance agreement with Hamamatsu Photonics Co., Ltd.

Moved the sales and management headquarters to the Tokyo Headquarters Building (Sumida-ku).

Obtained ISO 9001:2000 certification for the Tokyo headquarters.

Obtained ISO 9001:2000 certification for the technology center.

Obtained ISO 14001:1996 certification for the Tokyo headquarters, headquarters and factory, and Osaka Sales Office (now Osaka Branch).

Obtained ISO 14001:1996 certification for the Noto factory.

Obtained ISO 9001:2000 certification for the Osaka Sales Office (now Osaka Branch).

With the establishment of the JASDAQ market, canceled the over-the-counter registration and listed shares on the JASDAQ Stock Exchange.

Expansion of the factory at Shanghai Sigma Optical Machinery Co., Ltd. (Shanghai, China). Commencement of production of equipment products in China.

Integrated the quality management system and environmental management system, obtaining joint certification of 'ISO 9001:2000' and 'ISO 14001:2004' for all domestic business locations.

Opened a Kyushu branch office in Hakata-ku, Fukuoka City.

Relocated OptoSigma Corporation. Strengthened sales expansion system through equipment enhancement and other measures.

Established OptoSigma Europe S.A.S. in France, primarily for the sale of optical equipment within Europe.

Unified the global brand of the Sigma Optical Machinery Group as 'OptoSigma'.

Obtained approval for medical device manufacturing at the headquarters and Nikkado factory.

Established a new Technology Headquarters, reorganizing into a four-division structure of Production, Technology, Sales, and Management.

Re-certified all domestic business locations for 'ISO 9001:2015' and 'ISO 14001:2015' in a single batch.

Established OptoSigma Southeast Asia Private Limited in Singapore, primarily for the sale of optical equipment within the Southeast Asian market.

Social contribution through the optical industry.

Expanded the headquarters and Nikkado factory with a new plant building, enhancing equipment for optical elements, thin-film products, and optical system products.

Moved from the JASDAQ market to the Standard market of the Tokyo Stock Exchange following a review of market classifications.

Established LMS Co., Ltd. in Hakusan City, Ishikawa Prefecture, jointly funded by Lion Power Co., Ltd. and Minato Optical Industry Co., Ltd., primarily for the development, manufacturing, and sale of medical devices for the medical and healthcare industry.

Added two new plant buildings to the Technology Center to enhance production capacity and development capability.

Expanded and renovated the existing building of the Noto factory. Implemented Opto-Meca factoryization for the production of optical elements, thin-film products, and optical system products, and improved production capacity for basic optical equipment.