Please click the image. The event of each era is displayed.
deformed section steel Miya Steelworks in rolling and in wheel manufacturing, Japan Motor Wheel Co., Ltd.
Both companies, the origin of our company, developed and manufactured domestically produced products to replace imported products using their own technology,
They established themselves as pioneers in the industry.
- expansion
- Open-hearth factory under construction (1936)
Miya founder Toshihide Takatsuma
- expansion
- Open-hearth factory under construction (1936)
Miya Steelworks succeeded in rolling sash bars (window frames), which were imported at the time.
Adopted in the Marunouchi Building and many buildings rebuilt after the Great Kanto Earthquake
- expansion
- BS wheel made in Teikoku Hatsujo era
Founder Tadao Nonagase
Miya Steelworks started rolling wheel rims and ring bars.
Supplied to Teikoku Spring, which started manufacturing domestic wheels
Teikoku Hatsujo's wheel division became independent and Tokyo Sharin Seisakusho Co., Ltd. was established.
The company's wheels are used in Ford, GM Chevrolet trucks and domestic passenger cars
Under controlled economy, automobile wheel manufacturers such as Tokyo Sharin Seisakusho Co., Ltd. merged, and wheel Japan Motor Wheel Co., Ltd. manufacturer in Japan, was established.
Under controlled economy, Miya Steelworks and Tokyo Shearing Co., Ltd. merged to form Toto Steel Mfg., Co., Ltd.
Rising from the devastation after defeat,
With the dawn of a new era, we will rationalize the company's future in the new world,
It laid the foundation for development.
- expansion
- Tokyo Toto Steel Mfg., Co., Ltd. Steel Co., circa 1950
(Koto Ward, Tokyo)
Succeeded in manufacturing track shoe, which were cast steel products at the time, by rolling.
Acquisition of the world's top-level market share
Constructed an integrated steelmaking and rolling plant on a site of 1.8 million square meters in Toyohashi City, Aichi Prefecture.
Construction of a new plant for wheels for passenger vehicles in Toyokawa City, Aichi Prefecture
Established Topy Industries by merging four Toto Group companies, including electric furnaces and wheel manufacturers.
Pursuing synergies through integrated production that manufactures and processes steel,
We have developed and supplied products that support daily life and industry.
Built a new factory in Ayase City, Kanagawa Prefecture
Expansion into passenger car, truck and bus wheel plants
- expansion
- Merger agreement signing ceremony
Wheel manufacturer Japan Motor Wheel Co., Ltd., electric furnace manufacturer Toto Steel Mfg., Co., Ltd., construction machinery parts manufacturer Toto Zoki Co., Ltd., and steel frame and bridge manufacturer Toto Tekko Co., Ltd. are merged to form Topy Industries, with each of them aiming to hold the top spot in their respective product fields. Named Topy Industries with enthusiasm
Expanding crude steel production during the period of rapid economic growth
Started industrial fastener business
Currently deployed in four countries, supplying products that make use of precision metal processing technologies to automobile manufacturers, etc.
Achieves integrated production from melting, casting, heat treatment, and processing
Improve productivity and quality
- expansion
- Unveiled at the 25th Tokyo Motor Show
Currently producing wheels with a diameter of 63 inches (approximately 3 tons in weight)
Over 90% global market share
Aiming to be the world's Topy Industries, further refine our technology,
Develop original products. Starting with automobile wheel production in the United States
We have expanded production bases for the automotive and industrial parts businesses around the world.
Started production of passenger car wheels in the U.S.
Entered as the first company to be invited by the Kentucky government in the United States
Since then, we have developed business activities rooted in local communities.
Introducing the latest technology developed in Europe to improve steel quality and productivity
Production and commercialization of mica with high transparency and purity by applying electric furnace melting technology
Constructed Japan's largest shredder plant at Toyohashi Plant
Developing a recycling business for end-of-life vehicles, etc.
Started track production in the United States
Started track production in China
Started production of wheels for passenger vehicles in China
Implemented a third-party allotment of new shares with the company as the underwriter
- expansion
- Cross section of a wheel for lightweight trucks and buses
wheels for passenger vehicles that use 980 MPa class high-strength steel (approximately 20% lighter than conventional wheels), wheels for trucks and buses that use rim bars and forged discs (approximately 15% lighter than conventional wheels)
While accelerating global business development,
We have worked to strengthen our manufacturing base in Japan.
Furthermore, we will continue to create products and technologies that make society richer and easier to live.
We will achieve sustainable growth beyond the 100th anniversary of our founding.
Started production of wheels for trucks and buses in Indonesia
Started track production in Indonesia from 2019
Started production wheels for passenger vehicles in Mexico
Implemented earthquake and tsunami countermeasures to support the stable supply of our high-market share products while realizing overwhelming energy savings and productivity improvements
Started production wheels for passenger vehicles in India
Commercialized as an automatic guided vehicle (AGV) for the logistics field, etc.
- expansion
- Production base in Thailand / Asahitec Aluminum (Thailand)
Products that promote the automation of rebar processing and solve social issues such as labor shortages
