Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10472690 | High-strength seamless steel pipe for oil country tubular goods and method of producing the same | Mitsuhiro Okatsu, Kazuki Fujimura, Yasuhide Ishiguro | 2019-11-12 |
| 10316385 | High-tensile-strength steel plate and process for producing same | Katsuyuki Ichimiya, Kazukuni Hase, Shigeru Endo | 2019-06-11 |
| 10300564 | Weld joint | Katsuyuki Ichimiya, Kazukuni Hase, Shigeru Endo | 2019-05-28 |