Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041621 | Auxiliary burner for electric furnace | Sumito OZAWA, Koichi Tsutsumi, Yoshihiro Miwa, Ikuhiro Sumi, Takayuki Ito | 2021-06-22 |
| 10935234 | Auxiliary burner for electric furnace | Koichi Tsutsumi, Yoshihiro Miwa, Sumito OZAWA, Ikuhiro Sumi, Takayuki Ito | 2021-03-02 |
| 7641824 | Apparatus for preparing inorganic spheroidized particle | Mikio Sakaguchi, Kunio Fujii | 2010-01-05 |