| 1961 |
With the revision of the School Education Law, KOSEN(colleges of technology) were incorporated into a system of five-year higher educational institutions to meet the strong demand from industry. They accepted students with a junior high school diploma and educated them to become practical engineers against the background of the rapid economic growth taking place in Japan. |
| 1962 |
The first 12 national KOSEN were established (Hakodate, Asahikawa, Fukushima, Gunma, Nagaoka, Numazu, Suzuka, Akashi, Ube, Takamatsu, Niihama, and Sasebo). |
| 1963 |
An additional 12 national KOSEN were established (Hachinohe, Miyagi, Tsuruoka, Nagano, Gifu, Toyota, Tsuyama, Anan, Kochi, Ariake, Oita, and Kagoshima). |
| 1964 |
An additional 12 national KOSEN were established (Tomakomai, Ichinoseki, Akita, Ibaraki, Toyama, Nara, Wakayama, Yonago, Matsue, Kure, Kurume, and Miyakonojo). |
| 1965 |
An additional seven national KOSEN were established (Kushiro, Oyama, Tokyo, Ishikawa, Fukui, Maizuru, and Kitakyushu). |
| 1967 |
With the revision of the School Education Law, colleges involved in maritime technology were incorporated to establish five national colleges of maritime technology (Toyama National College of Maritime Technology, Toba National College of Maritime Technology, Hiroshima National College of Maritime Technology, Oshima National College of Maritime Technology, and Yuge National College of Maritime Technology), and a national technical college was established. (Kisarazu). |
| 1971 |
An additional three national KOSEN were established (Sendai, Takuma, and Kumamoto). |
| 1974 |
An additional two national KOSEN were established (Tokuyama and Yatsushiro). |
| 1991 |
With the revision of the School Education Law, it became possible to confer associate degrees on College of Technology graduates, establish a system offering special subjects to study, and expand the fields of study beyond industrial and maritime technologies. |
| 2002 |
The Committee on the Future of National Colleges of Technology was established. One additional national College of Technology was established (Okinawa) (students began to be accepted in April 2004). |
| 2003 |
The final report of the Committee on the Future of National Colleges of Technology was published. The Law concerning the Institute of National Colleges of Technology, Japan was enacted. |
| 2004 |
The Institute of National Colleges of Technology, Japan was established. |
| 2005 |
With the revision of standards for establishing KOSEN, a system was implemented to incorporate 45-hour credit courses in addition to 30-hour credit courses. |
| 2009 |
The “Center for International Student Exchange” was established in Okinawa KOSEN as the nationwide common facility to carry out internationalization activities for KOSEN.
Four highly developed national KOSEN (Sendai, Toyama, Kagawa, Kumamoto) were established by the reorganization of eight KOSEN. |
| 2012 |
50th anniversary ceremony for the college of technology system was held.
Liaison office opened as an exchange base with King Mongkut's Institute of Technology, Ladkrabang, Thailand. |
| 2016 |
Liaison office (Mongolia, Thailand) opened as a base for overseas expansion of KOSEN education. |
| 2017 |
Liaison office (Vietnam) opened as a base for overseas expansion of KOSEN education. |