Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9994940 | High carbon steel wire rod having excellent drawability | Hiroshi Oura | 2018-06-12 |
| 9970072 | High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring | Atsuhiko Takeda | 2018-05-15 |