Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174543 | Case hardening steel, method of producing case hardening steel, and method of producing gear part | Takashi Iwamoto, Kunikazu Tomita, Kazukuni Hase, Kimihiro Nishimura | 2021-11-16 |