Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11001905 | Steel plate for structural pipes or tubes, method of producing steel plate for structural pipes or tubes, and structural pipes and tubes | Yoshiaki Ota, Shinichi Kakihara, Nobuyuki Ishikawa | 2021-05-11 |
| 10954576 | High-strength steel, method for manufacturing high-strength steel, steel pipe, and method for manufacturing steel pipe | Junji Shimamura, Nobuyuki Ishikawa, Shigeru Endo | 2021-03-23 |