Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8387251 | Production method of internally ribbed steel tube | — | 2013-03-05 |
| 8281635 | Production method of internally ribbed steel tube and drawing plug for use therein | — | 2012-10-09 |
| 8091399 | Process for manufacturing a seamless tube | — | 2012-01-10 |
| 7846274 | High strength steel pipe for an air bag | Kunio Kondo, Miyuki Yamamoto, Takashi Takano, Susumu Hirano, Keisuke Hitoshio +1 more | 2010-12-07 |
| 7371293 | Cold finished seamless steel tubes | Takashi Nakashima, Kouichi Kuroda | 2008-05-13 |
| 6878219 | High strength steel pipe for an air bag and a process for its manufacture | Kunio Kondo, Miyuki Yamamoto, Takashi Takano, Susumu Hirano, Keisuke Hitoshio +1 more | 2005-04-12 |