Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9499873 | Steel plate having yield strength of 670 to 870 N/mm2 and tensile strength of 780 to 940 N/mm2 | Naoki Saitoh, Mitsuru Sawamura, Yasunori Takahashi, Takumi MIYAKE | 2016-11-22 |
| 8097099 | High toughness abrasion resistant steel with little change in hardness during use and method of production of same | Naoki Saitoh, Tatsuya Kumagai, Hirohide Muraoka | 2012-01-17 |
| 5964964 | Welded joint of high fatigue strength | Syuji Aihara, Hidesato Mabuchi, Naoki Saito | 1999-10-12 |
| 5634988 | High tensile steel having excellent fatigue strength at its weld and weldability and process for producing the same | Shuji Aihara, Atsushi Seto | 1997-06-03 |