Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12344910 | Duplex stainless steel, seamless steel pipe or tube, and a method of manufacturing the duplex stainless steel | Yusuke Yoshimura, Shunsuke Sasaki | 2025-07-01 |
| 12291766 | Stainless steel seamless pipe and method for manufacturing same | Masao Yuga | 2025-05-06 |
| 12234525 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2025-02-25 |
| 12221663 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2025-02-11 |