Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9764366 | Method for regenerating a plug for use in a piercing machine | Yasuto Higashida, Yasuyoshi Hidaka, Yosuke Tatebayashi | 2017-09-19 |
| 9545658 | Piercing apparatus, plug used for piercing apparatus, and method for producing seamless steel pipe | Tomio Yamakawa, Kouji Yamane, Yuji Inoue, Syusuke Shimooka, Kouji Muramatsu | 2017-01-17 |