Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9557109 | Apparatus for manufacturing molten metal | — | 2017-01-31 |
| 9453678 | Apparatus for manufacturing molten metal | — | 2016-09-27 |
| 8999033 | Method and system for producing direct reduced iron and/or hot metal using brown coal | Todd Michael Astoria | 2015-04-07 |
| 8871000 | Electric furnace for producing molten metal having material recycling capability | — | 2014-10-28 |
| 8425650 | Method for manufacturing molten metal | — | 2013-04-23 |
| 8419824 | Method for producing briquette, method for producing reduced metal, and method for separating zinc or lead | Yutaka Miyakawa, Noriaki Mizutani | 2013-04-16 |
| 8034283 | Rotary hearth furnace and method of operating the same | Sumito Hashimoto, Koji Tokuda | 2011-10-11 |
| 7993572 | Screw conveyor and operation control method for the same | Sumito Hashimoto | 2011-08-09 |
| 7922484 | Rotary hearth furnace | Sumito Hashimoto, Hiroshi Sugitatsu | 2011-04-12 |
| 7204689 | Seal structure of solid feeding screw, and method of manufacturing reduced metal using the seal structure | Sumito Hashimoto | 2007-04-17 |
| 7032526 | Method for combustion treatment of combustible waste and apparatus therefor | Hiroshi Sugitatsu | 2006-04-25 |
| 6918947 | Method for making reduced iron | Takeshi Maki, Yoshiyuki Matsui, Takeshi Sugiyama, Takao Harada, Hiroshi Tamazawa +6 more | 2005-07-19 |
| 6669756 | Discharge apparatus for movable hearth type heat-treatment furnace, its operation method, and method and apparatus for manufacturing molten iron using the same | Yoshihiro Urabe, Takao Umeki, Toshikatsu Uchida, Sumito Hashimoto | 2003-12-30 |
| 6521171 | Processing method for high-temperature exhaust gas | Masataka Tateishi | 2003-02-18 |
| 6517770 | Temperature control device and temperature control method for high-temperature exhaust gas | Masataka Tateishi | 2003-02-11 |
| 6511316 | Method of operating a rotary hearth furnace | Takao Harada, Hidetoshi Tanaka | 2003-01-28 |
| 6368379 | Apparatus and method for producing reduced metal | Masataka Tateishi | 2002-04-09 |