Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12227814 | Steel material for line pipes, method for producing the same, line pipe, and method for producing the line pipe | Kyono Yasuda, Junji Shimamura | 2025-02-18 |
| 12037666 | Steel material for line pipes, method for producing the same, and method for producing line pipe | Kyono Yasuda, Tomoyuki Yokota, Akihiko Tanizawa, Kazukuni Hase | 2024-07-16 |
| 11401568 | Steel material for line pipes, method for producing the same, and method for producing line pipe | Kyono Yasuda, Tomoyuki Yokota, Akihiko Tanizawa, Kazukuni Hase | 2022-08-02 |
| 7520943 | Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness | Nobuyuki Ishikawa, Toyohisa Shinmiya, Shigeru Endo | 2009-04-21 |