Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758850 | High strength stainless steel seamless pipe with excellent corrosion resistance for oil well and method of manufacturing the same | Yasuhide Ishiguro, Yukio Miyata, Mitsuo Kimura | 2017-09-12 |
| 9708681 | High-strength seamless steel pipe for oil well use having excellent resistance to sulfide stress cracking | Yasuhide Ishiguro, Yukio Miyata | 2017-07-18 |