Issued Patents 2017
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758741 | Coal deactivation processing device | Keiichi Nakagawa, Fumiaki Sato | 2017-09-12 |
| 9624558 | Blast-furnace blowing coal and method for producing same | Keiichi Nakagawa, Tsutomu Hamada, Masakazu Sakaguchi | 2017-04-18 |
| 9617491 | Coal deactivation treatment device | Takeshi Kaneko, Keiichi Nakagawa, Keiichi Sato, Junji Asahara | 2017-04-11 |
| 9617609 | Method for preparing blast furnace blow-in coal | Keiichi Nakagawa, Masakazu Sakaguchi, Tsutomu Hamada | 2017-04-11 |
| 9605225 | Method for preparing blast furnace blow-in coal | Keiichi Nakagawa, Masakazu Sakaguchi, Tsutomu Hamada | 2017-03-28 |
| 9556497 | Blast furnace | Keiichi Nakagawa, Tsutomu Hamada, Masakazu Sakaguchi | 2017-01-31 |