Established as Nihon Kogei Industrial Co., Ltd. with a capital of 195,000 yen in Chiyoda-ku, Tokyo.
Our company was established on October 2, 1946 (Showa 21) as Nihon Kogei Kogyo Co., Ltd. in Chiyoda-ku, Tokyo, with a capital of 195,000 yen.
Opened an Osaka branch office in Osaka City, Osaka Prefecture (promoted to branch in June 1961).
Established an Osaka branch office in Osaka City, Osaka Prefecture.
Opened a Nagoya branch office in Nagoya City, Aichi Prefecture.
Established a Nagoya branch office in Nagoya City, Aichi Prefecture.
Listed on the Second Section of the Tokyo Stock Exchange.
Opened a technology center in Yokohama City, Kanagawa Prefecture.
Listed on the Second Section of the Tokyo Stock Exchange. Established a technology center in Yokohama City, Kanagawa Prefecture.
Toyota Motor Corporation invested in the company and later became an affiliate.
Toyota Motor Industries, Ltd. (now Toyota Motor Corporation) invested capital in our company and subsequently became a related company.
TRINITY Industrial Co., Ltd. was founded in 1980.
Absorbed and merged with Matoko Industrial Co., Ltd. and Dōwa Industrial Co., Ltd. Headquarters moved to Nagoya City, Aichi Prefecture. Opened a Tarawa branch office (now Tarawa Sales Office) in Tarawa City, Aichi Prefecture.
Absorbed and merged with Matoko Industries Co., Ltd. and Dōwa Industries Co., Ltd. Headquarters moved to Nagoya City, Aichi Prefecture. Established a Tarawa branch office (now Tarawa Sales Office) in Tarawa City, Aichi Prefecture.
Renamed the company to Trinity Industrial Co., Ltd. (established Trinity Industrial Co., Ltd.). Renamed the technology center to Tokyo branch. Moved the Osaka branch to Toyonaka City, Osaka Prefecture.
Renamed the company to Trinity Industries Co., Ltd. (established Trinity Industries Co., Ltd.). Renamed the technology center to Tokyo Branch. Moved the Osaka branch to Yōkō City, Osaka Prefecture.
Moved headquarters to Kakimoto-cho, Toyota City, Aichi Prefecture.
Moved headquarters to Kakimoto-cho, Toyota City, Aichi Prefecture.
Started manufacturing automotive parts in Shimokichi-cho, Toyota City, Aichi Prefecture.
Started manufacturing automotive parts in Shimokijō-cho, Toyota City, Aichi Prefecture.
Constructed a headquarters factory in Katsurano-cho, Toyota City, Aichi Prefecture, and relocated the headquarters' equipment manufacturing division and the Shimokichi-cho automotive parts manufacturing division.
Constructed a headquarters factory in Katsunō-cho, Toyota City, Aichi Prefecture, and relocated the headquarters' equipment manufacturing division and the Shimokijō-cho automotive parts manufacturing division.
Established a subsidiary 'T&T Venture Sdn. Bhd.' in Malaysia.
Established a subsidiary, T&T Venture Sdn. Bhd., in Malaysia.
Opened a Kyushu sales office in Miyawaka City, Fukuoka Prefecture.
Established a Kyushu sales office in Kurate District, Fukuoka Prefecture (now Miyawaka City).
Established a subsidiary 'Thai Trinity Co., Ltd.' in Thailand.
Established a subsidiary, Thai Trinity Co., Ltd., in Thailand.
Established a subsidiary 'PT Trinity Engineering Indonesia' in Indonesia.
Established a subsidiary, P.T. Trinity Engineering Indonesia, in Indonesia.
Established a subsidiary 'Trinity Coating Systems Ltd.' in India.
Established a subsidiary, Trinity Coating Systems Ltd., in India.
Obtained ISO 9001 certification.
Consolidated the Kanbari, Odawara, and Gifu factories into the headquarters plant.
Consolidated the Kaneyama factory, Odawara factory, and Gifu factory into the headquarters factory.
Changed head office location from Chiyoda-ku, Tokyo to Yokohama City, Kanagawa Prefecture.
Changed the headquarters location from Chiyoda-ku, Tokyo to Yokohama City, Kanagawa Prefecture.
Obtained ISO 14001 certification (headquarters plant).
Obtained ISO 14001 certification (headquarters factory).
Established subsidiary "Tedi Ding Coatings Equipment (Shanghai) Co., Ltd." in China.
Established a subsidiary, Deli Ding Painting Equipment (Shanghai) Co., Ltd., in China.
Renamed headquarters plant to Toyota Plant.
Renamed the headquarters factory to Toyota Factory.
Constructed Miiyoshi Plant in Miiyoshi Town (now Miiyoshi City), Nishikamo District, Aichi Prefecture, and began manufacturing automotive exterior parts.
Constructed the Miyoshi Factory in Miyoshi Town, Nishikamo District, Aichi Prefecture (now Miyoshi City) and began manufacturing automotive exterior parts.
Changed head office location from Tsurumi-ku, Yokohama City to Kōhoku-ku, Yokohama City.
Changed head office location from Tsurumi-ku, Yokohama City to Kokohoku-ku, Yokohama City.
Received a technology development award from Toyota Motor Corporation for the "New Cartridge System".
Toyota Motor Corporation awarded the Technology Development Award for the 'New Cartridge System'.
Obtained ISO 14001 certification (Miiyoshi Plant).
ISO 14001 certification obtained (Miyoshi Factory).
Changed head office location from Kōhoku-ku, Yokohama City to headquarters (Kakimoto-cho, Toyota City, Aichi Prefecture).
Head office location changed from Kokohoku-ku, Yokohama City to headquarters (Kakimoto-cho, Toyota City, Aichi Prefecture).
Started production of automotive parts using the decorative method "Tri-D³eco".
Commenced production of automotive parts using the decorative process 'Tri-D³eco'.
Opened Tohoku branch office in Sendai City, Miyagi Prefecture.
Opened a Tohoku branch office in Sendai City, Miyagi Prefecture.
Made Taiwanese affiliate "Taiwan Tedi Ding Co., Ltd." a subsidiary.
Made Taiwanese affiliate 'Taiwan De Li Ding Co., Ltd.' a subsidiary.
Received the "Ikiki Award" for "Toyota City Workplace Award" from the Mayor of Toyota City.
Received the 'Eki Eki Award' for 'Toyota City Workplace where employees shine brightly' from the Mayor of Toyota City.
Received a technology development award from Toyota Motor Corporation for the development of the "High-Coating Paint Method".
Toyota Motor Corporation awarded the Technology Development Award for the development of the 'High-coverage coating process'.
Received a technology development award from Toyota Motor Corporation for the development of the "Painting Process Closed-Loop Dust Removal Device".
Toyota Motor Corporation awarded the Technology Development Award for the development of the painting process with a circulating dust removal device.
Received the 69th (FY2022) Okouchi Award "Okouchi Memorial Production Special Award".
Received the 69th (FY2022) Ooguchi Award 'Ooguchi Memorial Production Special Award'.
Opened Trinity Technical Solution Center (adjacent to headquarters).
Opened the Trinity Technical Solution Center adjacent to headquarters.
Trinity Industrial Co., Ltd. will exhibit at Nikkei–TSE IR Fair 2026, held at Tokyo Big Sight on August 28 and 29, 2026. The company will discuss its business, growth strategy, and financial and capital strategy.
The company was recognized for its development of fire prevention and safety systems, contributing to safe manufacturing through approximately 8 years of improvements and challenges.
Trinity Industry Co., Ltd. has been registered as a health management promotion company in Aichi Prefecture and announced its commitment to maintaining and promoting employee health.
Trinity Industrial Co., Ltd. was certified as a Health Management Excellence Corporation 2026 and Sports Air Company 2026 in 2026, and is working to promote employee health and create a work-friendly environment.
On March 16, 2026, Trinity Industrial's TTSC was featured on the Nikkei CNBC program, highlighting the background of its establishment, technological capabilities, and efforts towards co-creation.
Trinity Industries Co., Ltd. has issued the Sustainability Report for the 2025 edition.
We have started recycling waste cooking oil from the employee cafeteria at our headquarters and Toyota plant into biodiesel fuel for use in ships and other applications.
Trinity Industries has opened a new Technology Development Center in Toyota City, Aichi Prefecture, to conduct research utilizing environmental technology and AI/IoT.
Trinity Industries Co., Ltd. will participate in the Nikkei/TSE IR Fair 2025 held at Tokyo Big Sight on September 26 and 27, 2025, where they will introduce their business, environmental technologies, and growth strategies.
Trinity Industries Co., Ltd. was awarded the Toyota Environmental Promotion Excellence Award in recognition of its environmentally conscious activities by Toyota Motor Corporation.