Kokyo, Inc.

Kokyo, Inc. (株式会社光響) is a Japanese company headquartered in Fushimi-ku, Kyoto, that operates as a laser platformer — combining trading-house distribution of laser and optical products with in-house development of original laser equipment. Founded in 2009 in Ibaraki, Osaka by Kazuhiko Sumimura as a limited liability company, it was reorganized into a stock company in 2011 and has since grown into a specialized supplier for researchers, engineers, and manufacturers. The company's stated mission is to deliver optimal laser technologies to researchers and engineers, recognizing that many users need affordable, purpose-fit lasers rather than expensive full-spec systems. Kokyo's business spans several areas. It sells its own branded products, including laser cleaners (LCS series), laser markers (LMS series), digital microscopes (DMX1000 series), beam profilers (LBP series), femtosecond laser processing machines, ultrafast pulse lasers, laser welding machines, and frequency-stabilized He-Ne lasers. It also acts as a distributor for a wide range of imported laser and photonics products from overseas manufacturers, and it operates information platforms about light and lasers, including educational content and video learning services. The company describes itself as the No. 1 platformer in the laser industry, with a catalog of over 100,000 items from 300 manufacturers. Kokyo serves markets in Japan and internationally, with a focus on research institutions, universities, and industrial manufacturers. Its product lineup covers applications from rust removal and paint stripping to precision micro-machining, LiDAR evaluation, and laser safety. The company has received recognition including selection as a top photonics solutions provider by Semiconductor Review in 2022 and certification as one of the 300 "Habataku" small and medium enterprises in 2023. It listed on the Tokyo Stock Exchange's TOKYO PRO Market in 2023. In 2025, it acquired all shares of Nihon Micro Koki Co., Ltd., further expanding its capabilities. With its headquarters and Kyoto University Katsura VP Lab consolidated in Fushimi-ku, Kyoto in 2024, Kokyo continues to position itself at the intersection of laser technology distribution, original equipment manufacturing, and photonics education. Its platform model connects global suppliers with Japanese researchers and manufacturers, while its own products address specific needs in laser cleaning, marking, microscopy, and ultrafast processing.

Kokyo was founded in 2009 as a limited liability company (合同会社光響) in Ibaraki, Osaka, by Kazuhiko Sumimura, who remains the representative director president. The founder identified a need among researchers and engineers for affordable, purpose-specific lasers rather than expensive full-spec systems, and built the company around a laser platform business model. In 2011, the company was reorganized into a stock company (株式会社光響). In 2012, the headquarters moved to Shimogyo-ku, Kyoto. In 2020, the company opened the Kyoto University Katsura VP Lab in Nishikyo-ku, Kyoto. In 2023, Kokyo listed on the Tokyo Stock Exchange's TOKYO PRO Market. In 2024, the headquarters and the Katsura VP Lab were relocated and consolidated in Fushimi-ku, Kyoto. In 2025, Kokyo acquired all shares of Nihon Micro Koki Co., Ltd. (日本マイクロ光器株式会社). Throughout its history, Kokyo has expanded its product portfolio and partnerships. It has developed original products such as laser cleaners, laser markers, digital microscopes, beam profilers, and femtosecond laser processing machines. It also serves as a distributor for numerous international photonics companies, importing and selling their products in Japan. The company operates information platforms about light and lasers, providing educational content from textbook to paper level. It has received various recognitions, including being selected as a top photonics solutions provider by Semiconductor Review in 2022 and as one of the 300 'Habataku' SMEs in 2023. In 2024, it was recognized as a Kyoto City xJ-GoodTech notable company for its laser technology enabling micro-machining of next-generation semiconductor materials and labor-saving on-site.

• 2025

  Acquired all shares of Nihon Micro Koki Co., Ltd.

• 2024

  Headquarters and Katsura VP Lab relocated and consolidated in Fushimi-ku, Kyoto.

• 2023

  Listed on the Tokyo Stock Exchange TOKYO PRO Market.

• 2020

  Opened Kyoto University Katsura VP Lab in Nishikyo-ku, Kyoto.

• 2012

  Headquarters moved to Shimogyo-ku, Kyoto.

• 2011

  Reorganized into a stock company, Kokyo, Inc.

• 2009

  Founded as Kokyo LLC in Ibaraki, Osaka.

Kokyo positions itself as the No. 1 platformer in the laser industry, offering a comprehensive range of laser and photonics products from over 300 manufacturers, combined with its own developed equipment. It targets researchers and engineers seeking optimal, affordable laser solutions.

• Laser Cleaner LCS Series

  Self-developed, domestically manufactured laser cleaner for rust removal and paint stripping, with output range from 50 W to 1500 W. Customizable software and hardware.

• Laser Marker LMS Series

  Laser marker for printing and engraving, supporting all wavelengths, with capabilities for micro-machining and internal glass marking.

• Digital Microscope DMX1000 Series

  Digital microscope with 4K CMOS camera, seamless magnification from 20x to 7500x, and smart measurement functions.

• Beam Profiler LBP Series

  Beam profiler for measuring laser beam diameter and spatial intensity distribution, with over 30 models for various beam conditions.

• Femtosecond Laser Processing Machine

  Precision laser processing machine based on a 3-wavelength femtosecond source and precision stage, enabling cold ablation processing of various industrial materials.

• Ultrafast Pulse Laser Series

  Femtosecond and picosecond lasers for research, with a wide range of wavelengths. Kokyo is a pioneer in developing research femtosecond lasers.

• Laser Welding Machine

  Air-cooled laser welding machine with 1.5 kW laser power, industry-leading lightweight design.

• Frequency-Stabilized He-Ne Laser

  He-Ne laser with frequency stability of 10^-11, with over 2,000 units delivered cumulatively, available in three lineups.

1. 1株式会社光響 | クリーナー・マーカー・LiDAR・プロファイラ・光学部品 | レーザープラットフォーマーsymphotony.com
2. 2企業情報 | 光響symphotony.com
3. 3光響オリジナル製品〈 レーザークリーナー や レーザー加工機 など〉 | 光響symphotony.com
4. 4光響 取り扱い中古品 | 光響symphotony.com
5. 5光響 - Wikipediaja.wikipedia.org
6. 6Kokyo - Wikidatawikidata.org