Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822680 | Steel sheet for heat treatment | Yoshihiro Suwa, Masafumi Azuma, Kazuo Hikida | 2020-11-03 |
| 10718033 | Heat-treated steel material and method of manufacturing the same | Kazuo Hikida, Nobusato Kojima | 2020-07-21 |
| 10662494 | Heat-treated steel material and method of manufacturing the same | Kazuo Hikida, Nobusato Kojima | 2020-05-26 |
| 10563281 | Heat-treated steel sheet member and method for producing the same | Yoshihiro Suwa, Masafumi Azuma, Kazuo Hikida | 2020-02-18 |