Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9783876 | Stainless steel for oil wells and stainless steel pipe for oil wells | Taro Ohe, Hisashi Amaya, Hideki Takabe, Yohei Otome, Yusaku Tomio +3 more | 2017-10-10 |
| 9555496 | Process for producing welded joint using GMA welding and CO2 as a shielding gas | Kenta Yamada, Masahiko Hamada, Daisuke Motoya, Hisashi Amaya, Hideki Takabe | 2017-01-31 |