Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811759 | Method of producing iron oxide pellets | Osamu Tsuchiya, Takao Harada, Jun Jimbo, Shoichi Kikuchi, Yasuhiko Igawa | 2004-11-02 |
| 6797034 | Method of producing reduced metals and apparatus for reducing metal oxides | Hiroshi Sugitatsu, Takao Harada | 2004-09-28 |
| 6685466 | Rotary hearth furnace for producing reduced metal and method of producing reduced metal | Takao Harada | 2004-02-03 |