Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777352 | Oil-well steel pipe having excellent sulfide stress cracking resistance | Atsushi Soma, Tomohiko Omura, Yuji Arai, Toru Takayama, Masanao Seo | 2017-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777352 | Oil-well steel pipe having excellent sulfide stress cracking resistance | Atsushi Soma, Tomohiko Omura, Yuji Arai, Toru Takayama, Masanao Seo | 2017-10-03 |