Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5119662 | Methods for cold drawing seamless metal tubes each having an upset portion on each end | Toshio Sakurai | 1992-06-09 |
| 4726211 | Method of cold drawing seamless metal tubes each having an upset portion on each end | Toshio Sakurai | 1988-02-23 |
| 4606212 | Device for cold drawing seamless metal tubes having upset portions on both ends | Toshio Sakurai | 1986-08-19 |