Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11892106 | Threaded connection for steel pipe | Keita Inose, Masaaki Sugino | 2024-02-06 |
| 11774014 | Threaded connection for steel pipes | Keita Inose, Masaaki Sugino | 2023-10-03 |
| 11753878 | Threaded connection for steel pipe | Keita Inose, Masaaki Sugino, Shin Ugai | 2023-09-12 |
| 11300233 | Threaded connection for steel pipe | Keita Inose, Masaaki Sugino | 2022-04-12 |