Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11079045 | Electric resistance welded clad steel pipe or tube and method of producing same | Shinsuke Ide, Akihide Matsumoto, Atsushi Matsumoto | 2021-08-03 |
| 11053564 | High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells | Sota Goto, Yukihiko Okazaki | 2021-07-06 |
| 11041223 | High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high strength thick-walled conductor casing for deep wells | Sota Goto, Yukihiko Okazaki | 2021-06-22 |