Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808305 | High-strength PC steel wire | Makoto Okonogi, Masato Yamada, Katsuhito Oshima, Shuichi Tanaka | 2020-10-20 |
| 10752974 | High-strength PC steel wire | Makoto Okonogi, Masato Yamada, Katsuhito Oshima, Shuichi Tanaka | 2020-08-25 |