Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473393 | Method for discharging reduced product from a movable-hearth furnace and a discharging device | Natsuo Ishiwata, Tatsuya Ozawa, Tetsuya Yamamoto, Kanji Takeda, Tetsuya Kikui | 2009-01-06 |
| 7141205 | Method for discharging reduced product from a movable-hearth furnace and a discharging device | Natsuo Ishiwata, Tatsuya Ozawa, Tetsuya Yamamoto, Kanji Takeda, Tetsuya Kikui | 2006-11-28 |
| 6872074 | Method for discharging reduced product from a movable-hearth furnace and a discharging device | Natsuo Ishiwata, Tatsuya Ozawa, Tetsuya Yamamoto, Kanji Takeda, Tetsuya Kikui | 2005-03-29 |
| 6629839 | Method and apparatus for charging raw and carbonaceous materials into a moving hearth furnace | Tatsuya Ozawa, Tetsuya Yamamoto | 2003-10-07 |
| 6270552 | Rotary hearth furnace for reducing oxides, and method of operating the furnace | Kanji Takeda, Tetsuya Yamamoto, Tetsuya Kikui | 2001-08-07 |
| 6264721 | Method of operating rotary hearth furnace for reducing oxides | Kanji Takeda, Tetsuya Yamamoto | 2001-07-24 |
| 6248152 | Method of reducing iron oxide on a movable hearth furnace | Kanji Takeda | 2001-06-19 |
| 6224820 | Method of producing a reduced metal, and traveling hearth furnace for producing same | Tetsuya Yamamoto, Kanji Takeda, Hiroshi Itaya | 2001-05-01 |
| 6135766 | Rotary hearth furnace and method of operating the same | Kanji Takeda | 2000-10-24 |
| 6126718 | Method of producing a reduced metal, and traveling hearth furnace for producing same | Tetsuya Yamamoto, Kanji Takeda, Hiroshi Itaya | 2000-10-03 |
| 5839495 | Method of manufacturing roll for hot rolling | Kenji Ichino, Tomoya Koseki | 1998-11-24 |
| 5738734 | Centrifugal cast roll shell material | Tomoya Koseki, Kenji Ichino | 1998-04-14 |
| 5674171 | Roll outer layer material for hot rolling and method of manufacturing roll for hot rolling | Kenji Ichino, Tomoya Koseki | 1997-10-07 |