Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8071020 | High strength Cr-Ni alloy material and seamless pipe for oil well | Masaaki Igarashi, Hisashi Amaya, Hirokazu Okada | 2011-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8071020 | High strength Cr-Ni alloy material and seamless pipe for oil well | Masaaki Igarashi, Hisashi Amaya, Hirokazu Okada | 2011-12-06 |