Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7655181 | Screw conveyor of rotary hearth furnace for discharging reduced iron | Shinji Shima, Toshitaka Nakayama | 2010-02-02 |
| 7311519 | Raw material feeding apparatus for rotary hearth furnace | Shinji Shima, Yuichi Sakurai | 2007-12-25 |