| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Australia | 3 | |
| #3 | Mexico | 3 | |
| #4 | Brazil | 2 | |
| #5 | China | 2 | |
| #6 | Republic of Korea | 2 | |
| #7 | Ukraine | 2 | |
| #8 | WIPO (World Intellectual Property Organization) | 2 | |
| #9 | Canada | 1 | |
| #10 | Indonesia | 1 | |
| #11 | Slovakia | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Iron and steel production | |
| #2 | Climate change mitigation in goods production | |
| #3 | Furnaces | |
| #4 | Alloys | |
| #5 | Working metallic powder | |
| #6 | Metal production and refining | |
| #7 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tanigaki Yasuhiro | 22 |
| #2 | Ito Shuzo | 21 |
| #3 | Tokuda Koji | 21 |
| #4 | Kikuchi Shoichi | 21 |
| #5 | Tsuge Osamu | 18 |
| #6 | Kobayashi Isao | 18 |
| #7 | Honda Keisuke | 9 |
| #8 | Meissner David C | 6 |
| #9 | Negami Takuya | 6 |
| #10 | Shoop Kyle J | 6 |
| Publication | Filing date | Title |
|---|---|---|
| WO03008652A1 | Method of manufacturing metal iron | |
| ZA200103413B | Iron production method of operation in a rotary hearth furnace and improved furnace apparatus. | |
| KR20010095032A | Method of manufacturing molten metal iron | |
| UA77936C2 | Method of producing granular metallic iron, method of producing of liquid steel (variants), device for charging subsidiary raw material on hearth of reduction furnace with moving hearth |