Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434554 | Steel material suitable for use in sour environment | Hiroki Kamitani, Keiichi Kondo, Shinji Yoshida, Yuji Arai | 2022-09-06 |
| 11332813 | Steel material suitable for use in sour environment | Shinji Yoshida, Yuji Arai, Hiroki Kamitani | 2022-05-17 |
| 11313005 | Seamless steel pipe and method for producing the seamless steel pipe | Yuji Arai, Yosuke Tatebayashi, Keisuke Furo, Takenori Kuramoto, Hiroki Kamitani +1 more | 2022-04-26 |