Issued Patents 2016
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9486845 | Inner surface regulation tool, plug, mandrel, hot rolling mill, press piercing machine, and drawing machine | Kouji Yamane, Tomio Yamakawa, Yuji Inoue | 2016-11-08 |
| 9333544 | Plug used in piercing machine | Yasuyoshi Hidaka, Yasuto Higashida | 2016-05-10 |
| 9308561 | Method of producing seamless metal pipe | Kouji Yamane, Tomio Yamakawa | 2016-04-12 |
| 9283600 | Plug for hot pipe making | Kouji Yamane, Tomio Yamakawa, Yuji Inoue | 2016-03-15 |
| 9254511 | Method for producing seamless tube/pipe | Kenichi Saitou, Tomio Yamakawa | 2016-02-09 |