Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11466349 | Spheroidal graphite cast iron | Takumi Hijii, Yoshimasa Ureshino, Gou Nakamura, Zhong-zhi Zhang | 2022-10-11 |
| 11456576 | Method for manufacturing optical semiconductor device | Kazumasa Kishimoto | 2022-09-27 |