Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9364881 | Welded component comprising seamless bent pipe and seamless straight pipe sections and methods of manufacturing thereof | — | 2016-06-14 |
| 8549751 | Method of manufacturing a welded component comprising a seamless bent pipe and seamless straight pipe sections | — | 2013-10-08 |
| 7765850 | Mechanical pipe-end expander and a method of manufacturing seamless steel pipe | Masayoshi Akiyama, Kouichi Kuroda, Tatsuya Okui | 2010-08-03 |