Manufacture and sale of special steel materialsManufacture and sale of functional materials and magnetic materialsManufacture and sale of automotive parts and industrial machine partsEngineering business (design, construction, and maintenance of steel plant equipment, industrial furnaces, and environmental facilities)Distribution and Services (sales of group products, welfare services, real estate and insurance business, golf course management, analytics business)
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Network
NETWORK
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History
93 EVENTS
1916: Separated the steelmaking division from Nagoya Electric Light Co., Ltd. and established Electric Steel Works Co., Ltd. Kato Minji became president, starting production of alloy steel and tool steel
Separation of the steel division from Nagoya Electric Lighting Co., Ltd., establishment of Nagoya Electric Steel Co., Ltd.; Mr. Shimoide Minoru appointed president, commencement of alloy steel and tool steel production
1917: Established a steelmaking department at Nagoya Electric Light Co., Ltd. and began experimental electric steelmaking
Installation of a steelmaking department at Nagoya Electric Lighting Co., Ltd.; initiation of electric steelmaking trials
1918: Separated the power development business and steelmaking department from Nagoya Electric Light Co., Ltd., established Kiso Electric Steel Co., Ltd., and succeeded in the first smelting of electric slag
Separation of power development and steelmaking departments from Nagoya Electric Lighting Co., Ltd.; establishment of Kiso Electric Steel Co., Ltd.; successful first smelting of electric slag
1919: Kiso-Fukushima Plant Commenced Operations
Kiso-Fukushima Plant Commenced Operations
1921: Kiso Electric Industry Co., Ltd. merged with Japan Hydropower Co., Ltd. to form Osaka Transmission Co., Ltd., changed its name to Daido Electric Power Co., Ltd., and renamed the steel plant to Nagoya Steel Works
Kiso Electric Industry Co., Ltd. merged with Japan Hydropower Co., Ltd. and Osaka Transmission Co., Ltd.; renamed to Daito Power Co., Ltd.; steel plant renamed Nagoya Steel Works
1922: Daido Steel Co., Ltd. received in-kind investment of the Atsuta and Fukushima factories from Electric Steel Works Co., Ltd. and changed its name to Daido Electric Steel Works Co., Ltd.
Separation of Nagoya Steel Works from Daito Power Co., Ltd.; establishment of Daito Steel Co., Ltd.
1925: Successfully produced Japan's first manganese special rail bar
Successful production of Japan's first manganese-based special rail track
1934: Merged with Teikoku Spring Co., Ltd.
Merger with Teikoku Spring Co., Ltd.
1937: Hoshizaki Plant Established
Hoshizaki Plant Established
1938: Changed the name of Daido Electric Steel Works Co., Ltd. to Daido Steel Co., Ltd.
Renaming of Daito Electric Steel Co., Ltd. to Daito Steel Co., Ltd.
1941: Merged with Tomonaga Steel Co., Ltd., adding large cast steel products, steel materials, wire rods, and plain steel production
Merger with Tomonaga Steel Co., Ltd.; addition of large cast steel products, steel materials, wire products, and general steel production
1950: Dissolved Daido Steel Co., Ltd. under the Corporate Reconstruction Act and reestablished as New Daido Steel Co., Ltd.
Dissolution of Daito Steel Co., Ltd. under the Corporate Reconstruction and Maintenance Act; reestablishment as New Daito Steel Co., Ltd.
1953: Changed the name of New Daido Steel Co., Ltd. to Daido Steel Co., Ltd.
Renaming of New Daito Steel Co., Ltd. to Daito Steel Co., Ltd.
1955: Merged with Shin Riken Industrial Co., Ltd.
Merger with Shin Riken Industrial Co., Ltd.
1957: Merged with Tokyo Steel Works Co., Ltd.
Merger with Tokyo Steel Works Co., Ltd.
1958: Used our high-tensile steel in the television antenna section of Tokyo Tower
Use of our company's high-tensile steel in the television antenna department of Tokyo Tower
1959: The Ise Bay typhoon caused the flooding of the Hoshizaki and Tsukiji factories
Flooding of Hoshizaki and Tsukiji plants due to the Ise Bay typhoon
1963: Inherited personnel and commercial rights of the special steel division of Shimizu Chemical Co., Ltd.
Acquisition of personnel and commercial rights of Shimura Chemical Co., Ltd.'s special steel division; relocation of headquarters to the Koigun Building; completion of Phase 2 construction at Chita Plant
1964: Merged with Kanto Steel Co., Ltd.
Merger with Kanto Steel Co., Ltd.
1965: Established a New York office.
Opening of New York office
1969: Consolidated the forging division at the Chita plant.
Consolidation of forging division to Chita plant
1973: Handball team achieved a quadruple (All Japan Industrial Teams, National Sports Festival, All Japan General, NHK Cup) and subsequently won three consecutive quadruples.
Handball team wins four titles (All Japan Industrial, National Sports Festival, All Japan General, NHK Cup) and then achieves four titles for three consecutive years
1976: Daito Steel Co., Ltd., Nihon Special Steel Co., Ltd., and Tokushu Steel Co., Ltd. merged, changing the company name to Daito Special Steel Co., Ltd.
Daido Steel Co., Ltd., Nippon Special Steel Co., Ltd., and Special Steel Co., Ltd. merged and changed the company name to Daido Special Steel Co., Ltd.
1980: Started continuous casting operations at the Hoshizaki and Chita plants.
Continuous casting machine operation begins at Hoshizaki and Chita plants
1981: Chita Belt Steel Plant Established
Chita Belt Steel Plant Established
1985: Achieved Sales of 300 Billion Yen
Achieved Sales of 300 Billion Yen
1987: Changed fiscal year-end from June 30 to March 31.
Fiscal year end changed from June 30 to March 31
1988: Changed registered headquarters address from 66 Kurikomi, Hoshizaki-cho, Minami-ku, Nagoya City to 11-18, Nishiki 1-chome, Naka-ku, Nagoya City.
Registered head office address changed from 66 Kurikomi, Hoshizaki-cho, Minami-ku, Nagoya to 11-18 Nishiki 1-chome, Naka-ku, Nagoya. The American Metal Association certified the "Shabo Elu 1.5-ton arc furnace" as a historical heritage
1990: Established the Nakatsugawa Technology Center.
New Nakatsugawa Techno Center established
1991: Announced the corporate philosophy on the 75th anniversary of founding.
Management philosophy announced for the 75th anniversary
1992: Chita Plant Commenced Operation of State-of-the-Art Continuous Casting Machine
Chita Plant Commenced Operation of State-of-the-Art Continuous Casting Machine
1995: Suspended the steel production division at the Hoshizaki plant.
Steel division at Hoshizaki plant suspended. Hong Kong office opened
1997: Hong Kong Office Established
Bangkok office opened
2000: Fully transferred the magnetic materials business to Daito Electronics Co., Ltd.
Magnetic material business fully transferred to Dai-Do Electronics Co., Ltd.
2001: First announced the consolidated mid-term management plan.
First release of consolidated mid-term management plan. Hot rolling mill for strip steel introduced at Hoshizaki plant, and full production of high-end strip steel in Nagoya district began
2002: Established Daito Casting Co., Ltd., a comprehensive casting manufacturer.
Daido Casting Co., Ltd., a comprehensive casting manufacturer, established
2003: Introduced the large-scale high-speed precision forging machine "AMP70XL" at the Chita forging plant.
Large hot high-speed precision forging machine "AMP70XL" introduced at Chita forging plant. Tokyo headquarters moved from Nishi-Shimbashi to Shinagawa
2004: Started operation of the large-section casting machine (PH Caster) at the Chita plant.
Large cross-section casting machine (PH caster) started operation at Chita plant
2005: Guangzhou Office Established
Guangzhou office opened. Headquarters moved from Fushimi to Kyudai Ohtori
2006: Achieved a cumulative steel production of 50 million tons at the Chita plant.
Chita plant cumulative steel production reached 50 million tons
2007: Handball team achieved a triple (All Japan Industrial Teams, All Japan General, Japan League).
Handball team wins three titles (All Japan Industrial, All Japan General, Japan League)
Handball Club Achieves Triple Crown
2008: Started operation of the 7,000-ton press at the Shikugawa plant.
Shibukawa plant 7,000-ton press started operation
2009: Commencement of proof-of-concept test for concentrator photovoltaic power generation
Start of proof-of-concept test for concentrated solar power generation
2013: Chita Plant – Steel production innovation and rationalization, introduction of 150-ton arc furnace
Chita Factory: Steel Production Innovation and Rationalization, Introduction of 150-ton Arc Furnace
2016: 100th Anniversary of Founding
100th Anniversary of Founding
2020: Establishment of Chita Second Plant; opening of Nakatsugawa Advanced Magnetic Materials Development Center
Establishment of Chita Second Factory, Opening of Nakatsugawa Advanced Magnetic Materials Development Center
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News
32 ARTICLES
Shinichi Sagawa Selected as Cultural Merit Awardee for Fiscal Year 2026
Shinichi Sagawa, an advisor at Daito Special Steel, was chosen as a Cultural Merit Awardee for the fiscal year 2026. The neodymium magnets invented by Sagawa contribute to the high performance of a wide range of products, including electric vehicle motors, wind turbine generators, robots, and information and communication devices. Sagawa expressed gratitude to those who supported his research and development and indicated his intention to continue working on the societal implementation of research and achievements.
High Wear-Resistant Alloy DSA D22 for Semiconductor Equipment
Daido Special Steel has developed the nickel-based corrosion-resistant alloy DSA D22 for semiconductor manufacturing equipment and components. While maintaining the same gas corrosion resistance as DSALOY 22 (equivalent to Hastelloy C-22), the alloy is significantly improved in wear resistance through alloy reduction, aiming to expand the use of high corrosion-resistant materials and reduce component costs simultaneously.
New Line Construction for Cold-rolled Products at Chita Plant 2
Daido Special Steel has established a heat treatment, processing, and inspection line for cold-rolled products at Chita Plant 2. The post-forging process functions from the Shibukawa plant have been transferred, and efficiency is being improved through the introduction of state‑of‑the‑art equipment and automation of inter‑process transport. As part of the "High‑Alloy Process Reform Project," the production system is optimized to strengthen the ability to meet the expanding demand for high‑alloy materials.
Proteural and Daido Special Steel Commence Rail Modal Shift
Proteural and Daido Special Steel, in collaboration with Logistics West Japan and Maruta Transport, began long‑haul round‑trip transport between the San'in region and Aichi Prefecture in August 2026. By jointly using steel‑specific rail containers, they achieved a round‑trip service that carries Proteural freight from San'in to Aichi and Daido Special Steel freight from Aichi to San'in, eliminating the need for return air container shipments.
Promoting Logistics Efficiency with Hacobu Implementation
Taido Special Steel is implementing Hacobu's logistics DX solution as part of a project to build a sustainable logistics system, aiming to reduce waiting times and improve loading efficiency. The company has advanced improvements through initiatives such as the 2019 White Logistics Declaration and the 2023 implementation of a waiting time management system, and by the second half of fiscal 2024, it reduced the average waiting time for product shipments at its main facilities to roughly half of pre-activity levels.
Contract Awarded for Renewal Work on Electric Accumulator for Automobile Tunnel
Daido Special Steel has been awarded the renewal work for the electric accumulator installed at the Renmaku ventilation shaft and Central ventilation shaft of the Hanshin Expressway Route 31 Kobe Mountain Line. The project involves replacing and removing accumulators, auxiliary equipment, and control panels. The contract amount is 1.137 billion yen excluding tax, and the construction period is from January 16, 2026 to September 26, 2028.
Proposing Brass Alternative Due to Copper Price Surge: Strengthening Promotion of STARCUTTM 13Cr
Daido Special Steel Co., Ltd. has indicated a policy to strengthen promotion of the ferritic high-speed cutting stainless steel "STARCUTTM 13Cr" as an alternative material in response to the price increase of brass products caused by the surge in copper prices. STARCUTTM 13Cr is characterized by the highest machinability and price stability, high corrosion resistance, and the fact that it does not contain added lead. Additionally, a new catalog reflecting the latest data has been issued.
Daido Special Steel Donates Disaster Preparedness Supplies to Aichi Children Support Project
Daido Special Steel Co., Ltd. donated disaster preparedness supplies that had reached their replacement period to the Aichi Children Support Project, a general incorporated association. The donation consisted of 45,500 meals of food and 15,300 bottles of 2‑liter water, which were delivered to food‑support centers in Aichi, Shizuoka, Gifu, and Niigata. On July 3, a donation ceremony was held, during which a senior executive officer of the company presented a catalog and exchanged thank‑you certificates. The company stated that it will continue to contribute to the local community.
Development of the Electric Radiant Tube Heater "D2-ERTH" Contributing to Decarbonization of Heat Treatment Furnaces
Taido Special Steel Co., Ltd. has developed the electric radiant tube heater "D2-ERTH" that contributes to the carbon neutrality of heat treatment furnaces. This heater can be introduced simply by removing and replacing the existing burner, significantly reducing CO₂ emissions from heat treatment furnaces. Sales will begin in August 2026.
Thanking Chubu Polishing for Cooperation in Identifying Counterfeit Products
Daido Special Steel received a consultation from Chubu Polishing Co., Ltd., who noticed a discrepancy in the quality of mold material. Upon investigation, it was confirmed that the material was highly likely to be a counterfeit product, not manufactured by the company. In appreciation of their contribution to understanding the circulation of counterfeit products within the domestic supply chain, Daido Special Steel presented a letter of gratitude to Chubu Polishing on May 29, 2026. The company will continue to work on protecting intellectual property rights and eradicating counterfeit products.
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Public records
GOV
National Tax Agency basic information6180001037514
Source: National Tax Agency Corporate Number Publication Site, basic three items
Trade name
大同特殊鋼株式会社
Trade name (kana)
ダイドウトクシュコウ
Name in English
Corporation type
301
Address
〒461-0005 愛知県名古屋市東区東桜１丁目１番１０号
Postal code
4610005
Prefecture code
23
City code
102
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2018-07-17
Change date
2015-10-05
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
Latest record
1
Excluded from search
0
Processing type
01
Correction type
1
Trade name image ID
Address image ID
Sequence number
3645443
METI gBizINFO6180001037514
Source: gBizINFO (Ministry of Economy, Trade and Industry)
