Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9322087 | Stainless steel for oil well, stainless steel pipe for oil well, and method of manufacturing stainless steel for oil well | Hideki Takabe, Kunio Kondo, Hisashi Amaya, Yohei Otome | 2016-04-26 |
| 9303296 | High-strength stainless steel for oil well and high-strength stainless steel pipe for oil well | Hisashi Amaya, Hideki Takabe, Kunio Kondo, Yohei Otome | 2016-04-05 |