OHYO Koken Kogyo Co., Ltd.

OHYO Koken Kogyo Co., Ltd. (commonly abbreviated as OKEN) is a manufacturer headquartered in Fussa, Tokyo, Japan, specializing in the production and development of synthetic optical crystals, optical products, and radiation measurement instruments. According to its official website, the company produces and develops synthetic optical crystals such as fluorite and scintillators, optical products such as lenses and prisms, and radiation measurement instruments such as radiation detectors, survey meters, and monitors, while also undertaking custom special-order instruments, indicating a business model centered on custom and technical order manufacturing rather than mass-market consumer products. The company's product range spans two specialized fields: optical materials and radiation instruments. Synthetic fluorite and scintillator crystals are key materials for ultraviolet and infrared optics and radiation detection, while lenses and prisms serve industrial, research, and instrument-manufacturing customers. Radiation detectors, survey meters, and monitors are widely used in the nuclear industry, medical, industrial, and environmental monitoring fields. This combination indicates that OHYO Koken Kogyo's customers are primarily research institutions, industrial clients, and instrument manufacturers rather than ordinary consumers. OHYO Koken Kogyo is headquartered in Fussa, in the western part of the Tokyo metropolitan area. Public information about the company is limited; its official website is the main source describing its product lines, and Wikidata records it only as a company located in Fussa, Japan. Available evidence does not show its parent company, ownership structure, or stock listing, so the company appears to be an independently operated private Japanese manufacturer. Its official website was last updated in 2006, suggesting a long but relatively low-profile history in this niche field. Because available evidence is limited, this entry should be regarded as a brief overview of a specialized industrial supplier rather than a complete corporate history. The company's positioning as a manufacturer of synthetic optical crystals and radiation instruments is supported by its official website, but details such as founding year, founders, executives, financial data, and ownership remain unknown in the available materials.

OHYO Koken Kogyo Co., Ltd. is a Japanese company based in Fussa, Tokyo, known for manufacturing synthetic optical crystals, optical products and radiation measuring instruments. The available evidence does not specify its founding year or early history, but its official website describes a specialised manufacturer focused on technical and custom-order production. The company's core activities, as stated on its website, are the production and development of synthetic optical crystals such as fluorite and scintillators, optical products such as lenses and prisms, and radiation measuring instruments including radiation detectors, survey meters and monitors. It also produces specially ordered instruments, indicating that it serves customers requiring customised technical solutions. Synthetic fluorite and scintillator crystals are used in advanced optical and radiation-detection applications, while lenses and prisms are components for optical systems. Radiation detectors, survey meters and monitors are used to measure and monitor ionising radiation in nuclear, medical, industrial and environmental settings. This product portfolio positions OHYO Koken Kogyo as a niche supplier to scientific, industrial and instrumentation customers rather than a consumer-facing brand. The company is headquartered in Fussa, a city in western Tokyo. Wikidata records it simply as a company in Fussa, Japan. No parent company, ownership group or stock exchange listing is indicated in the available evidence, suggesting it operates as an independent private company. Its official website carries a last-updated date of 2006, which may indicate a long-established business with a relatively static public web presence. Because public information is limited, the company's detailed history, leadership and financial background remain undocumented in the supplied sources. The dossier therefore focuses on its verified product specialisations and location.

Specialised Japanese manufacturer of synthetic optical crystals, optical components and radiation measuring instruments, including custom-order instruments.

• Synthetic optical crystals (fluorite, scintillators)

  Produced and developed by the company for optical and radiation-detection applications.

• Optical products (lenses, prisms)

  Optical components manufactured for industrial and scientific use.

• Radiation measuring instruments (radiation detectors, survey meters, monitors)

  Instruments for measuring and monitoring ionising radiation.

• Specially ordered instruments

  Custom-built instruments made to customer specifications.

1. 1OKEN -OHYO KOKEN KOGYO CO., LTD.-oken.jp
2. 2OHYO Koken Kogyo Co., Ltd. (Japan) - Wikidatawikidata.org