Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11401591 | Method for selecting rail steel and wheel steel | Minoru Honjo, Tatsumi Kimura, Kazukuni Hase | 2022-08-02 |
| 11332799 | Case hardening steel, method of producing the same, and method of producing gear parts | Keisuke Ando, Takashi Iwamoto, Kimihiro Nishimura | 2022-05-17 |
| 11326238 | Steel material for high heat input welding | Yuki Toji, Akio Ohmori, Koichi Nakashima, Ryo Arao, Kazukuni Hase | 2022-05-10 |
| 11299798 | Steel plate and method of producing same | Yoshiko Takeuchi, Kazukuni Hase | 2022-04-12 |