Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8082768 | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug | Kazuhiro Shimoda, Kouji Nakaike, Naoya Hirase, Yasuto Higashida, Takateru Inage +5 more | 2011-12-27 |
| 8065900 | Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material | Naoya Hirase, Yasuhiro Kouchi | 2011-11-29 |
| 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 | Sumio Iida, Mitsuru Yoshizawa, Koji Nakaike | 2011-11-29 |
| 8047039 | Process for producing stainless steel pipe | Satoshi Matsumoto, Toshihide Ono, Kouji Nakaike, Sumio Iida, Hiroshi Nogami | 2011-11-01 |