Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8082767 | Lubricant for hot metal working and powder lubricant composition for hot metal working | Kenichi Sasaki, Shizuo Mori | 2011-12-27 |
| 8065901 | Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill | Yasuyoshi Hidaka, Mitsuru Yoshizawa, Koji Nakaike | 2011-11-29 |
| 8047039 | Process for producing stainless steel pipe | Yasuyoshi Hidaka, Satoshi Matsumoto, Toshihide Ono, Kouji Nakaike, Hiroshi Nogami | 2011-11-01 |
| 8024953 | Lubricant for hot working and method for producing seamless steel pipe | Kenichi Saito | 2011-09-27 |
| 7919439 | Powdered lubricant composition for hot working and method for manufacturing seamless tubes | Kenichi Sasaki, Shizuo Mori, Atsushi Ito | 2011-04-05 |
| 7861565 | Method for applying lubricant onto mandrel bar, method for controlling thickness of lubricant film on mandrel bar, and method for manufacturing seamless steel pipe | Kenichi Saito | 2011-01-04 |