Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |