- 1915.02
- Established in 4, Miyabayashi, Higashi, Osaka, by Yasumichi Uryu as the first pneumatic tool manufacturer in Japan.
- 1921.04
- Changed into the limited company with 1 milion yen in capital.
- 1922.02
- Designated by the Ministry of Navy.
- 1926
- Designated by the Ministry of Railway and the Ministry of Army.
- 1934.12
- Moved Head office as well as factories to the present address.
- 1936.11
- Merged with the sister company Uryu Shoko, KK and changed the company name to Uryu Seisaku, Ltd. with 150 thousand yen capital increased.
- 1944.04
- Designated as the munitions factory.
- 1948.12
- Designated by the Ministry of International Trade and Industry.
- 1963.06
- Authorized by Japanese Industrial Standard Mark.
- 1969
- Certificated by the Ministor of International Trade and Industry as the contributed company for export in 1970 & 1971.
- 1969.07
- Constructed a new factory in Yamato Koriyama, Nara and started the production for small tools with latest machineries.
- 1969.10
- Built a new Tokyo office in Takanawa, Minato, Tokyo.
- 1979.08
- Moved Nagoya office to Osone, and built a three-storied new office.
- 1982.09
- Built a heat treatment factory in headquarter and installed the latest furnace.
- 1982.12
- Built a two-storied new Kamiji material inventory for enriching the material control and accelating the cutting procedures.
- 1985.01
- Built a three-storied new technical center.
Built new two factories and the public welfare / canteen facilities in Nara factory.
- 1996.11
- Approved ISO 9002.
- 1997.12
- Approved ISO 9001.
- 1999.03
- Approved ISO 14001
- 2012.12
- Replaced muffle carburizing furnaces in the heat treatment facility of Osaka factory with the high functional gas carburizing furnace & vacuum carburizing furnace due to the deterioration.
- 2015.02
- Celebration for 100th year in business
- 2017.03
- Approved ISO 14001:2015
- 2017.11
- Approved ISO 9001:2015
