Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11421298 | Electric resistance welded steel tube for coiled tubing and method for manufacturing the same | Akihide Matsumoto, Hiroshi Nakata | 2022-08-23 |
| 11359267 | High-carbon hot-rolled steel sheet and method for manufacturing the same | Yuka Miyamoto, Yasuhiro Sakurai, Takashi Kobayashi | 2022-06-14 |
| 11326240 | Hot-rolled steel sheet for coiled tubing | Akihide Matsumoto, Hiroshi Nakata | 2022-05-10 |
| 11313008 | Steel member and production method therefor | Ichiro Sugimoto, Shuji Kawamura | 2022-04-26 |