Nihon SC Co., Ltd.

Nihon SC Co., Ltd. (日本エスシー株式会社) is a Japanese company based in Kojimachi, Chiyoda-ku, Tokyo, that develops, manufactures, sells, installs and maintains commercial kitchen exhaust and environmental equipment. Its core product is the AQUA CLEAN SYSTEM (ACS), which the company describes as Japan's first grease separator to use water as its filter medium rather than conventional metal filters. The system is designed to capture grease and oil from cooking exhaust, reduce exhaust temperature, and reduce cooking odours, thereby helping prevent duct fires and improve the working and neighbourhood environment around restaurants, food factories and public facilities. The company's name reflects its mission: the "SC" in Nihon SC stands for "Safety & Clean." According to its corporate profile, Nihon SC was established in February 1984 (Showa 59) with capital of 50,000,000 yen. It operates from a Tokyo head office and regional offices in the Chubu (Aichi) and Kansai (Osaka) areas, and it has supplied more than 25,000 ACS units cumulatively in Japan and Taiwan according to its homepage, with an earlier company profile page citing more than 18,000 units. Its customers range from individually owned restaurants to food factories and public facilities. Beyond the ACS itself, Nihon SC sells related odour-control products such as the "Shoshu Daijin" (消臭大臣) deodorising product, which uses phytoncides as a main ingredient, and ceramic-based kitchen exhaust deodorising equipment. The company also provides design, construction and maintenance services for supply and exhaust equipment, cleaning and maintenance of hoods, ducts and exhaust fans, and consulting on oil pollution and odour prevention. It maintains a maintenance support programme with periodic maintenance contracts. Manufacturing is carried out in cooperation with Nihon Metal Works Co., Ltd. in Niigata Prefecture, which the company says is important because the water-filter design demands high machining precision. Nihon SC is a private company; its representative director and president is Hiromi Arai.

Nihon SC Co., Ltd. was established in February 1984 (Showa 59) in Japan. The company built its business around solving problems specific to commercial kitchen exhaust: grease accumulation in ducts, the risk of duct fires, cooking odours, and the broader environmental impact of restaurant and food-factory exhaust. Its central innovation was the AQUA CLEAN SYSTEM (ACS), which the company presents as Japan's first grease separator to use water as the filtering medium instead of conventional metal filters. By passing exhaust through water, the system is designed to capture more than 90% of the grease in the exhaust, lower exhaust temperature, and reduce oily odours, which in turn helps protect ducts, exhaust fans and related equipment and reduces fire risk. The company has grown from its Tokyo base to serve customers across Japan, adding a Chubu branch office in Anjo, Aichi Prefecture, and a Kansai branch office in Kita-ku, Osaka. It has also supplied its systems in Taiwan. Its installed base has grown over time: an earlier company profile page states that more than 18,000 units had been delivered in Japan and Taiwan, while the current homepage states cumulative deliveries of more than 25,000 units. Customers include food factories, public facilities and individually owned restaurants. Nihon SC has expanded beyond the ACS itself into a broader kitchen environment business. It offers the "Shoshu Daijin" deodorising product, which uses phytoncides as a main ingredient and is intended for use alongside the ACS, and ceramic-based kitchen exhaust deodorising equipment that adsorbs odour sources and uses catalytic decomposition for self-regeneration. The company also provides design, construction and maintenance of supply and exhaust equipment including ACS, cleaning and maintenance of hoods, ducts and exhaust fans, and consulting on oil pollution and odour prevention. It operates a maintenance support programme with periodic maintenance contracts and spot service. Manufacturing quality is a stated priority because the water-filter design requires high machining precision. Nihon SC works with Nihon Metal Works Co., Ltd. (株式会社日本メタルワークス) in Niigata Prefecture as a partner manufacturing plant. The company is privately held with capital of 50,000,000 yen, and its representative director and president is Hiromi Arai. Its sales agents include Secom Alpha Co., Ltd., Tesco Co., Ltd., and Sangen Kanko Yugen Kaisha, among others.

• 1984

  Company established in February (Showa 59).

• Developed the AQUA CLEAN SYSTEM, described as Japan's first water-filter grease separator for commercial kitchen exhaust.

• Cumulative deliveries in Japan and Taiwan surpassed 18,000 units according to an earlier company profile.

• Cumulative deliveries in Japan and Taiwan surpassed 25,000 units according to the current homepage.

Pioneer of water-based commercial kitchen exhaust systems in Japan, focused on fire prevention, hygiene and odour control for commercial kitchens.

• AQUA CLEAN SYSTEM (ACS)

  Water-filter grease separator for commercial kitchen exhaust; captures over 90% of grease, lowers exhaust temperature and reduces oily odours.

• Shoshu Daijin

  Deodorising product using phytoncides as a main ingredient, used together with ACS for odour control.

• Ceramic kitchen exhaust deodorising equipment

  Adsorbs odour sources with ceramic and uses catalytic decomposition for self-regeneration.

1. 1日本エスシー株式会社公式サイトsc-japan.co.jp
2. 2会社概要 | 日本エスシー株式会社sc-japan.co.jp
3. 3Nihon SC Co., Ltd. (Japan) - Wikidatawikidata.org