Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193179 | Seamless stainless steel pipe for oil country tubular goods and method of manufacturing the same | Kazuki Fujimura, Seigo Goto | 2021-12-07 |
| 11085095 | High-strength seamless stainless steel pipe for oil country tubular goods and method of manufacturing high-strength seamless stainless steel pipe | Kenichiro Eguchi | 2021-08-10 |
| 11072835 | High-strength seamless stainless steel pipe for oil country tubular goods, and method for producing the same | Kenichiro Eguchi | 2021-07-27 |
| 11075508 | Thermal-insulated multi-walled pipe for superconducting power transmission and laying method therefor | Akio Sato, Shigeto Sakashita | 2021-07-27 |
| 10971286 | Thermal-insulated multi-walled pipe for superconducting power transmission | Akio Sato, Shigeto Sakashita | 2021-04-06 |
| 10920297 | High-strength seamless steel pipe for oil country tubular goods and method of producing the same | Masao Yuga, Mitsuhiro Okatsu, Seiji Nabeshima, Hiroki Ota | 2021-02-16 |