Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11761556 | Valve wear state grasping method and system using valve stem angular velocity | Yu Inoue, Isao NISHIZAWA | 2023-09-19 |
| 11668696 | Mask structure optimization device, mask structure optimization method, and program | Issei Sato, Masashi Ugawa, Hiroaki Adachi, Fumiya Shimada | 2023-06-06 |