Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11898797 | Electric furnace | Takashi Arai | 2024-02-13 |
| 11473841 | Electric furnace | — | 2022-10-18 |
| 10612104 | Exhaust gas treatment method and exhaust gas treatment facility | Kazuki Yoshida, Takashi Arai | 2020-04-07 |
| 9534266 | Slag-supplying container for use in electric furnace for reduction processing of steel-making slag | Takashi Arai, Hiroki Fukumura | 2017-01-03 |
| 9238846 | Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag | Takashi Arai, Hiroki Fukumura | 2016-01-19 |
| 9217185 | Method of reduction processing of steel-making slag | Takashi Arai, Hiroshi Hirata | 2015-12-22 |
| 6126716 | Iron-base scrap preheating apparatus and method | Yukinori Shigeyama, Mitsugu Takeuchi | 2000-10-03 |
| 5889810 | Apparatus for preheating and melting of scrap and process for the same | Hiroyuki Katayama, Kenro Sato, Akio Kasama, Yasushi Okumura, Yoji Demoto +1 more | 1999-03-30 |