Kuroi Electric Co., Ltd.

Kuroi Electric Co., Ltd. (クロイ電機) is a Japanese manufacturing company headquartered in Minami-ku, Kyoto. Founded in 1952, the company has spent more than seventy years developing and producing lighting fixtures and electrical machinery. Its official materials describe a development-oriented manufacturing philosophy centered on enriching daily life, and it has built its reputation on a broad, high-mix low-volume product range that spans thousands of electrical products. The company's early history is tied to the transition from incandescent bulbs to fluorescent lighting. During that period Kuroi Electric invented a waterproof socket capable of withstanding harsh marine environments and used it to launch marine fluorescent lighting fixtures. Later, as fluorescent and mercury lamps dominated the late twentieth century, the company began developing LED lighting ahead of much of the industry, creating white LED fixtures usable in a variety of environments and contributing to Japan's energy-saving policies. Today Kuroi Electric is based in Kyoto and produces a wide range of lighting products, including design lighting that draws on materials and traditional crafts, disaster-prevention lighting, high-output floodlights, and full-color effect lighting. Its technology extends beyond lighting into housing equipment and security devices. Its products are used in homes, offices, stores, and well-known landmarks across Japan. The company emphasizes an integrated development and manufacturing system that covers everything from design to mass production, supported by a supply chain that extends within Japan and overseas. Its manufacturing strengths include woodworking that preserves the texture of wood, sheet-metal processing that balances strength and rationality, molding that controls light, and surface treatment that adds color to products. It also handles device manufacturing, quality evaluation, and production engineering. Kuroi Electric operates its headquarters, Kyoto Development Center, and SCM Center in Kyoto, along with the Kyoto Tamba Plant, Nishikyogoku Plant, and a Niigata Office. The company is led by President Tetsuhiro Kuroi.

Kuroi Electric Co., Ltd. was founded in 1952 in Kyoto, Japan. According to the company's official greeting, it began as a development-oriented manufacturer during the period when incandescent light bulbs were being replaced by fluorescent lamps. Its early breakthrough was the invention of a waterproof socket designed to withstand harsh marine conditions, which it used in marine fluorescent lighting fixtures. This established the company in the lighting equipment field. Through the latter half of the twentieth century, Kuroi Electric continued to adapt to changes in lighting technology. As fluorescent and mercury lamps became mainstream, the company moved early to develop LED lighting, creating white LED fixtures suitable for various environments. The company states that this work contributed significantly to Japan's energy-saving policies. Over the decades, Kuroi Electric expanded its product range beyond basic lighting. It developed design lighting that incorporates materials and traditional crafts, disaster-prevention lighting, high-output floodlights, and full-color effect lighting. It also extended its technology into housing equipment and security devices. The company has pursued a high-mix low-volume production strategy and now handles several thousand types of electrical products, a breadth it describes as among the largest in Japan. Today Kuroi Electric operates from Kyoto, with its headquarters, Kyoto Development Center, and SCM Center in Minami-ku. It also has the Kyoto Tamba Plant in Funai District, the Nishikyogoku Plant in Ukyo-ku, and a Niigata Office located within Panasonic Corporation's Electric Works Niigata Plant. The company emphasizes an integrated development and manufacturing system from design to mass production, supported by domestic and international supply chains. It remains a private company led by Representative Director and President Tetsuhiro Kuroi.

• 2026

  Certified as a 2026 Health and Productivity Management Outstanding Organization.

• 2025

  Certified as a 2025 Health and Productivity Management Outstanding Organization.

• 2025

  Announced relocation of Kusatsu Office.

• 1952

  Company founded in Kyoto, Japan.

• Invented waterproof socket for marine environments and launched marine fluorescent lighting fixtures.

• Began developing LED lighting ahead of the industry, creating white LED fixtures for various environments.

A Kyoto-based, development-oriented manufacturer specializing in high-mix low-volume production of lighting and electrical products, with integrated design-to-mass-production capabilities.

• Marine fluorescent lighting fixtures

  Early product line enabled by the company's waterproof socket invention.

• White LED lighting fixtures

  Developed ahead of industry, usable in various environments.

• Design lighting

  Lighting that leverages materials and traditional crafts.

• Disaster-prevention lighting

  Lighting designed to protect lives.

• High-output floodlights

  Dynamic high-output floodlighting.

• Full-color effect lighting

  Lighting for color effects and performances.

• Housing equipment

  Equipment supporting comfortable living.

• Security devices

  Devices for safety and security.

1. 1クロイ電機 - 照明器具及び電気機械器具の製造kuroi.co.jp
2. 2ご挨拶 | 会社情報 | クロイ電機kuroi.co.jp
3. 3アクセス | 会社情報 | クロイ電機kuroi.co.jp
4. 4Kuroi Electric Co., Ltd. (Japan) - Wikidatawikidata.org