Oshima OHYO Co., Ltd.

Oshima OHYO Co., Ltd. (大島応用株式会社) is a Japanese industrial and building-materials manufacturer headquartered in Asahi-ku, Osaka. The company was founded in 1947, originally in Osaka's Joto-ku, as Oshima Applied Chemical Industry Co., Ltd. (大島応用化学工業株式会社), and was renamed Oshima OHYO Co., Ltd. in May 2008. Its core business is the processing of thin steel sheet and the manufacture and processing of acid-resistant coated steel sheet, together with the production and sale of coatings for acid-resistant coated steel, general building, civil engineering and construction work, architectural design and construction supervision through a first-class registered architect office, and import/export operations. The company's product line is built around coated and laminated steel sheet for demanding environments. Its flagship materials include TOF (Tafurol), a fluororesin laminated coated steel sheet; COM (Chemicolor Oshima Metal), an acid-resistant coated steel sheet; RM-B (Roof Metal B); and TCC (two-tone color coated steel sheet). It also produces OPM (Oshima punching metal), vibration-damping device covers, and composite coated steel sheets such as OSP (Oshima sandwich panel). A range of ventilation equipment is sold under the Oshima name, including the Oshima-type ventilator (OV), monitor (OCV) and air mover (OAM). Beyond materials, Oshima OHYO supplies applied processed products such as folded and corrugated roof sheets, flat panels, external walls, ridge covers, flashing and rain gutters (valley gutters, eaves gutters, etc.). Several of its products have received statutory non-combustible material certification from Japan's Ministry of Land, Infrastructure, Transport and Tourism, including TOF, TOF-SUS, COM, COM-SUS, RM-B and Chemicolor Boka Wall. The company operates a factory in Niihama, Ehime Prefecture, and a processing center in Neyagawa, Osaka Prefecture, and has historically maintained sales offices and branches in Niihama, Yokkaichi, Nagoya, Hiroshima, Tokyo, Ube and Okayama. Oshima OHYO is a private company with stated capital of 80 million yen. Its representative director is Yukitaka Sadatoshi. The company has pursued quality certification, with its Niihama civil engineering and construction branch and Ehime factory obtaining ISO 9001 registration in 2006. It continues to position itself as a responsive supplier to increasingly sophisticated and diversified needs in coated steel and construction materials.

Oshima OHYO Co., Ltd. traces its origins to May 1947, when the business was founded in Joto-ku, Osaka. In August 1947 it was incorporated as Oshima Applied Chemical Industry Co., Ltd. (大島応用化学工業株式会社) with capital of 195,000 yen, and a Niihama office was opened the same month. The Niihama office was elevated to branch status in July 1952, followed by the opening of the Yokkaichi sales office in August 1954, the Nagoya sales office in August 1955, the Hiroshima sales office in July 1957, the Tokyo sales office in August 1962, and the Ube sales office in August 1964. In February 1966 the head office was relocated to Kawachi City (present-day Higashiosaka City). In February 1967 Chemicolor Oshima Metal was certified as a statutory non-combustible material. In August 1971 the company received an industrial technology research grant for fiscal 1971 from the Ministry of International Trade and Industry. In May 1972 Chemicolor Oshima Metal F was certified as a statutory non-combustible material, and in January 1976 Oshima Boro Roof received the same certification. The Okayama sales office opened in December 1976. In December 1977 capital was increased to 111,000,000 yen, and a quality inspection agreement was concluded with Mitsubishi Heavy Industries' Nagasaki Shipyard. In October 1978 the Tokyo sales office was elevated to branch status, and in October 1979 a quality assurance agreement was concluded with Mitsubishi Heavy Industries' Nagasaki Shipyard. In May 1981 Oshima Boro Roof was designated as a fire-resistant roof and fire-resistant structure. In July 1983 the head office moved to its current location in Taishibashi, Asahi-ku, Osaka, and the Ehime factory was opened in Niihama, Ehime Prefecture. In June 1984 a processing center was opened in Neyagawa, Osaka Prefecture. In August 1989 Kabetone was certified as a statutory non-combustible material. In December 1992 the Ehime factory was certified as a Japanese Industrial Standards (JIS) display-certified factory. In April 1994 Tafurol was certified as a statutory non-combustible material. In January 2006 the Niihama civil engineering and construction branch and the Ehime factory obtained ISO 9001 quality system registration. In May 2008 the company changed its trade name to Oshima OHYO Co., Ltd. (大島応用株式会社). The company's recent website notices record routine corporate updates, including a change of head office location noted in July 2023 and updates to its business category registration in April 2025. Throughout its history, Oshima OHYO has combined steel sheet processing with coatings chemistry and construction capabilities, building a portfolio of certified non-combustible and acid-resistant building materials for industrial and architectural use.

• 2006

  Niihama civil engineering and construction branch and Ehime factory obtained ISO 9001 quality system registration

• 1994

  Tafurol certified as statutory non-combustible material

• 1992

  Ehime factory certified as Japanese Industrial Standards display-certified factory

• 1989

  Kabetone certified as statutory non-combustible material

• 1984

  Processing center opened in Neyagawa, Osaka

• 1983

  Head office relocated to current location in Asahi-ku, Osaka; Ehime factory opened in Niihama, Ehime

• 1981

  Oshima Boro Roof designated as fire-resistant roof and fire-resistant structure

• 1979

  Quality assurance agreement concluded with Mitsubishi Heavy Industries Nagasaki Shipyard

• 1978

  Tokyo sales office elevated to branch

• 1977

  Capital increased to 111,000,000 yen; quality inspection agreement concluded with Mitsubishi Heavy Industries Nagasaki Shipyard

• 1976

  Oshima Boro Roof certified as statutory non-combustible material

• 1976

  Okayama sales office opened

• 1972

  Chemicolor Oshima Metal F certified as statutory non-combustible material

• 1971

  Received industrial technology research grant for fiscal 1971 from the Ministry of International Trade and Industry

• 1967

  Chemicolor Oshima Metal certified as statutory non-combustible material

• 1966

  Head office relocated to Kawachi City (present-day Higashiosaka City)

• 1964

  Ube sales office opened

• 1962

  Tokyo sales office opened

• 1957

  Hiroshima sales office opened

• 1955

  Nagoya sales office opened

• 1954

  Yokkaichi sales office opened

• 1952

  Niihama office elevated to branch

• 1947

  Founded in Joto-ku, Osaka

• 1947

  Incorporated as Oshima Applied Chemical Industry Co., Ltd. with capital of 195,000 yen; Niihama office opened

Industrial and architectural coated steel sheet specialist serving sophisticated, diversified needs in acid-resistant, fluororesin-laminated and non-combustible building materials.

• TOF (Tafurol)

  Fluororesin laminated coated steel sheet

• TOF-SUS (Tafurol-SUS)

  Fluororesin laminated coated stainless steel sheet

• COM (Chemicolor Oshima Metal)

  Acid-resistant coated steel sheet

• COM-SUS

  Acid-resistant coated stainless steel sheet

• RM-B (Roof Metal B)

  Coated steel sheet for roofing

• TCC (Two-tone Color Coated Steel Sheet)

  Two-tone color coated steel sheet

• OPM (Oshima Punching Metal)

  Punching metal

• OSP (Oshima Sandwich Panel)

  Composite coated steel sheet / sandwich panel

• Oshima-type Ventilator (OV)

  Ventilation equipment

• Oshima-type Monitor (OCV)

  Ventilation equipment

• Oshima-type Air Mover (OAM)

  Ventilation equipment

• Oshima Soundproof Panel

  Fire-resistant, heat-insulating and soundproof construction series

• Oshima Exterior Panel

  Exterior panel

• Oshima Cover Roof

  Roof cover method

• Oshima Valley Gutter

  Rain gutter product

1. 1Oshima OHYO official websiteoshima-ohyo.co.jp
2. 2会社概要 - 大島応用株式会社oshima-ohyo.co.jp
3. 3サービス／製品一覧 - 大島応用株式会社oshima-ohyo.co.jp
4. 4Oshima OHYO Co., Ltd. (Japan) - Wikidatawikidata.org