Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9033220 | Production management method for steel tubes and pipes | Shigetoshi Hyodo, Kazuto Kubota | 2015-05-19 |
| 7654122 | Process for straightening a tube | Kouichi Kuroda, Tomio Yamakawa | 2010-02-02 |
| 7197906 | Cold rolling process for metal tubes | Toshihide Ono | 2007-04-03 |
| 7188501 | Cold rolling process for metal tubes | Toshihide Ono | 2007-03-13 |