Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435762 | High-yield-ratio high-strength cold-rolled steel sheet and method of producing the same | Yoshihiko Ono, Kohei Hasegawa | 2019-10-08 |
| 10329636 | High-strength cold-rolled steel sheet with excellent material homogeneity and production method therefor | Kohei Hasegawa | 2019-06-25 |
| 10253389 | High-yield-ratio, high-strength cold-rolled steel sheet and production method therefor | Kohei Hasegawa | 2019-04-09 |
| 10174396 | High-strength cold-rolled steel sheet and method for manufacturing the same (as amended) | Yuki Toji, Kohei Hasegawa | 2019-01-08 |