Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9771628 | Duplex stainless steel and production method therefor | Masahiko Hamada, Hisashi Amaya, Hiroyuki Nagayama, Kenta Yamada | 2017-09-26 |
| 9579870 | Welded joint of duplex stainless steel | Hiroyuki Nagayama, Kenta Yamada, Masahiko Hamada, Hisashi Amaya | 2017-02-28 |
| 9555496 | Process for producing welded joint using GMA welding and CO2 as a shielding gas | Kenta Yamada, Masahiko Hamada, Shinjiro Nakatsuka, Hisashi Amaya, Hideki Takabe | 2017-01-31 |