| 1940 |
Hitachi, Ltd. established Mito Works |
| 1941 |
Construction of forging plant |
| 1944 |
Completion of 5,000-ton hydraulic forging press |
| 1951 |
Development of forged rolls commenced |
| 1953 |
Production and sale of forged rolls commenced |
| 1961 |
Hitachi, Ltd. established Katsuta Works (operations of Mito Works split between old and new sites) |
| 1970 |
Completion of 6,000-ton hydraulic forging press |
| 1987 |
Production and sales of composite high-speed-steel rolls commenced |
| 1998 |
Completion of 2,000-ton hydraulic forging press |
| 2004-04 |
Shaped industrial materials business of Hitachi, Ltd. spun off to Hitachi Kyowa Engineering Co., Ltd. |
| 2013-04 |
Hitachi Kyowa Engineering Co., Ltd., Hitachi Engineering & Services Co., Ltd., Hitachi Setsubi Engineering Co., Ltd., and Hitachi Electric Systems Co., Ltd. merged and renamed Hitachi Power Solutions Co., Ltd. |
| 2018-03 |
株式会社日立パワーソリューションズの鍛造ロール事業を会社分割により承継し、日本アドバンスロール株式会社営業開始 |
| 2018-03 |
March 2018 : Japan Advanced Roll Co., Ltd. commenced operations, taking over the forged rolls operations spun off from Hitachi Power Solutions Co., Ltd. |
| 2018-03 |
Japan Advanced Roll Co., Ltd. commenced operations, taking over the forged rolls operations spun off from Hitachi Power Solutions Co., Ltd. |
| 2023-09 |
東京貿易マテリアル株式会社と資本提携、東京貿易グループの事業会社となる |
| 2023-09 |
September 2023 : Formed capital alliance with TOKYO BOEKI MATERIALS LTD., and became a subsidiary of Tokyo Boeki Group |
| 2023-09 |
Formed capital alliance with TOKYO BOEKI MATERIALS LTD., and became a subsidiary of Tokyo Boeki Group |