Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9482302 | Process for manufacturing seamless steel pipe, hollow spring utilizing seamless steel pipe | Koji Iwaya, Tomoyuki Minami, Noritoshi Takamura | 2016-11-01 |
| 9429255 | Hollow seamless pipe for high-strength spring | Takuya Kochi, Hitoshi Hatano, Eiichi Tamura, Takashi Yajima, Akira Tange | 2016-08-30 |