| 1951-03 |
Establishment of Japan High-Pressure Concrete Pole Co., Ltd. |
| 1951-12 |
Established the headquarters factory of Toyo Pile Hum Tube Manufacturing Co., Ltd. in Hara, Numazu City, Shizuoka Prefecture, with a capital of 1,800 thousand yen. |
| 1951-12 |
Established Toyo Pile Hum Tube Manufacturing Co., Ltd. at the former headquarters site in December 1951 for the purpose of manufacturing and selling concrete piles and hum tubes. |
| 1951-12 |
Founded in December 1951 (Showa 26). |
| 1951-12 |
Established Oriental Pile Hume Tube Manufacturing Co., Ltd. at the former headquarters site for the purpose of manufacturing and selling concrete piles and Hume tubes |
| 1954-04 |
Changed the company name to Asano Pool Co., Ltd. in April 1954. |
| 1954-04 |
Changed corporate name to Asano Pole Co., Ltd. |
| 1956-04 |
Opened the current Tokyo sales office in April 1956. |
| 1956-04 |
Current Tokyo branch office established |
| 1957-09 |
In September 1957, our Numazu factory became a JIS-certified factory. |
| 1957-09 |
Our Numazu plant becomes a JIS-marked plant |
| 1962-09 |
Capital increased to 105,000 thousand yen, and shares were listed on the Second Section of the Tokyo Stock Exchange. |
| 1962-09 |
Listed on the Main Market of the Nagoya Stock Exchange. |
| 1962-09 |
In September 1962, shares were listed on the Second Section of the Tokyo Stock Exchange. |
| 1962-09 |
Public listing on the Tokyo Stock Exchange Standard (listed in September 1962). |
| 1962-09 |
Shares listed on the Second Section of the Tokyo Stock Exchange |
| 1968-09 |
In September 1968, a new Oga factory was established in Kakegawa City, Shizuoka Prefecture. |
| 1968-09 |
New Oga factory established in Kakegawa City, Shizuoka Prefecture |
| 1969-11 |
In November 1969, a new Numazu factory was established in Numazu City, Shizuoka Prefecture. |
| 1969-11 |
New Numazu factory established in Numazu City, Shizuoka Prefecture |
| 1971-09 |
In September 1971, the company Higashishō was founded. |
| 1971-09 |
Establishment of Higashishō Co., Ltd. |
| 1972-09 |
In September 1972, Japan Segment Industrial Co., Ltd. was established. |
| 1972-09 |
Establish Japan Segment Industrial Co., Ltd. |
| 1973-06 |
In June 1973, Toupar Kōsan Co., Ltd. (now TA Pile Manufacturing Co., Ltd.) was established. |
| 1973-06 |
Establish Toupar Kousan Co., Ltd. (now TA Pile Manufacturing Co., Ltd.) |
| 1974-06 |
Production commenced in June 1974 |
| 1974-06 |
Establish a Tokyo factory in Mizuho Town, Nishitama District, Tokyo |
| 1978 |
Merged with Higashi-Okami Asano Pool Co., Ltd. and renamed the company to Toyo Asano Co., Ltd. |
| 1980 |
Renamed Tokyu Concrete Industry Co., Ltd. to Higashi-Okami Concrete Industry Co., Ltd. and merged. |
| 1982-10 |
In October 1982, a specific construction business license was obtained (tobii and civil engineering). |
| 1982-10 |
Obtain a special construction industry license (tobii and civil engineering works) |
| 1985-04 |
Merge with Higashikiri Concrete Industry Co., Ltd. and change the company name to Higashikiri Asano Pool Co., Ltd. |
| 1997-03-01 |
On March 1, 1997, to manufacture and sell concrete piles, Toyo Pile Hume Pipe Manufacturing Co., Ltd. and Higashi-ōgi Asano Pōl Co., Ltd. merged and changed the company name to Toyo Asano Co., Ltd. |
| 1997-03 |
Product and construction method development history (post-merger). |
| 1997-03-01 |
Merge the concrete pile manufacturing and sales company, Toyo Pile Hum Tube Manufacturing Co., Ltd., with Higashikiri Asano Pool Co., Ltd., and change the company name to Toyo Asano Co., Ltd. |
| 1997-12 |
Product and construction method development history (post-merger). |
| 1998-06 |
Product and construction method development history (post-merger). |
| 1999-09 |
Product and construction method development history (post-merger). |
| 2001-12 |
In December 2001, the company celebrated its 50th anniversary. |
| 2001-12 |
Celebrate the 50th anniversary |
| 2002-02 |
In February 2002, the Numazu factory was closed and concrete pile production was consolidated at the Tokyo factory. |
| 2002-02 |
Close the Numazu factory and consolidate concrete pile production at the Tokyo factory |
| 2002-09 |
In September 2002, a large rental store was established on the former Numazu factory site, attracting the Cainz Home Center. |
| 2002-09 |
Establish a large retail store on the former Numazu factory site and attract Cainz Co., Ltd.'s home center |
| 2008-04 |
Product and construction method development history (post-merger). |
| 2010 |
Since 2010, began systematic efforts to reduce CO₂ based on Tokyo's 'Total Reduction Obligation and Emission Trading System' |
| 2015-08 |
Product and construction method development history (post-merger). |
| 2017-05 |
In May 2017, the company transitioned to an audit committee company to improve corporate governance and enable rapid decision-making. |
| 2017-05 |
Transition to a company with an audit committee to further improve corporate governance, enable rapid decision-making and business execution, and enhance fairness, transparency, and efficiency of management |
| 2017-11 |
Product and construction method development history (post-merger). |
| 2018-12 |
In December 2018, the company was selected as a 'Regional Future Leading Company' by the Ministry of Economy, Trade and Industry as a core enterprise capable of driving regional economic initiatives. |
| 2018-12 |
The Ministry of Economy, Trade and Industry selects our company as a 'Regional Future Driving Company' as a core enterprise candidate for regional economic driving projects |
| 2019-03 |
In March 2019, a Nomination and Compensation Committee was established to enhance the independence, objectivity, and accountability of the board of directors. |
| 2019-03 |
Grant approval decided |
| 2019-03 |
Establish a Nomination and Compensation Committee to enhance the independence, objectivity, and accountability of the board of directors and further strengthen the corporate governance system |
| 2019-07 |
Co-founded Mizuho Town Regional Smart Energy Co., Ltd. with CD Energy Direct, Iruma Gas, and INPEX. |
| 2019-07 |
Establishment of Mizuho Town Regional Smart Energy Co., Ltd. |
| 2020-01 |
In January 2020, a shareholder benefit program was introduced, offering products from the Numazu area to shareholders as a gesture of appreciation and community contribution. |
| 2020-01 |
Introduce a shareholder benefit program targeting products from the Numazu area to enhance the attractiveness of investing in our shares, encourage medium- to long-term shareholding, and contribute to local information dissemination and community in Numazu City, Shizuoka Prefecture, while expressing gratitude to shareholders |
| 2020-05 |
Commenced on-site construction for the Mizuho Town Regional Smart Energy project. |
| 2020-05 |
On-site construction started |
| 2020-11 |
Carried out the delivery of gas engines. |
| 2020-11 |
Gas engine delivery |
| 2021-04 |
Started partial power supply and heat transfer for Mizuho Town Regional Smart Energy. |
| 2021-04 |
Partial commencement of power supply and heat transfer |
| 2021-05 |
Product and construction method development history (post-merger). |
| 2021-06 |
Product and construction method development history (post-merger). |
| 2021-10 |
Held the completion ceremony for the heat transfer equipment. |
| 2021-10 |
Completion ceremony held |
| 2021-12 |
In December 2021, the company celebrated its 70th anniversary. |
| 2021-12 |
Celebrate the 70th anniversary |
| 2022-01 |
Product and construction method development history (post-merger). |
| 2022-04 |
Commenced operation of the heat transfer equipment. |
| 2022-04 |
In April 2022, the company moved from the Second Section to the Standard Market of the Tokyo Stock Exchange following a review of market classifications. |
| 2022-04 |
Heat transfer equipment operation commenced |
| 2022-04 |
Move from the Second Section of the Tokyo Stock Exchange to the Standard Market following a review of market classifications |
| 2023 |
Cogeneration Award 2023 Outstanding Case Collection |
| 2023-02 |
In February 2023, all shares of Japan Segment Industrial Co., Ltd. were transferred, and the company was excluded from its consolidated subsidiaries. |
| 2023-02 |
Transfer all shares of Japan Segment Industrial Co., Ltd. and exclude it from the consolidated subsidiaries |
| 2023-03 |
Product and construction method development history (post-merger). |
| 2023-06 |
In June 2023, the capital was reduced to 100 million yen. |
| 2023-06 |
Product and construction method development history (post-merger). |
| 2023-06 |
Reduce capital to 100 million yen |
| 2023-07 |
Product and construction method development history (post-merger). |
| 2023-09 |
Product and construction method development history (post-merger). |
| 2024-02 |
Listed on the Main Market of the Nagoya Stock Exchange. |
| 2024-02 |
Listed on the Nagoya Stock Exchange Main Market in February 2024. |
| 2024-02 |
Nagoya Stock Exchange Main (listed in February 2024). |
| 2024-09 |
Product and construction method development history (post-merger). |
| 2025-03-01 |
Published the organizational chart as of March 1, 2025. |
| 2025-03 |
In March 2025, the new headquarters was completed and the company moved its headquarters to Hara, Numazu City, Shizuoka Prefecture. |
| 2025-03 |
Move headquarters to Hara, Numazu City, Shizuoka Prefecture following the completion of the new headquarters |
| 2025-04 |
History of product and construction method development (post-merger) |
