Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10196702 | Electric resistance welded steel pipe for oil well | Hideki Hamatani, Masakazu Ozaki, Yuusuke Ichinose | 2019-02-05 |
| 10167538 | Steel pipe | Yosuke Kiyota, Hideyuki Nakamura | 2019-01-01 |