Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11703163 | Threaded connection for steel pipe | Michihiko Iwamoto, Yasuhiro Kochi | 2023-07-18 |
| 11067205 | Threaded connection for steel pipe | Michihiko Iwamoto, Yusuke Takeda, Yasuhiro Kochi, Satoshi Maruta | 2021-07-20 |