Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9937600 | Surface treatment apparatus, and surface treatment method | Ko Miyauchi, Yukihiro Ikeya, Yoshihide Nakamura | 2018-04-10 |
| 4515352 | Rotary furnace used for the production of ferrochromium | Tsutomu Fukushima, Kiyoshi Kawasaki | 1985-05-07 |
| 4414026 | Method for the production of ferrochromium | Tsutomu Fukushima, Kiyoshi Kawasaki | 1983-11-08 |
| 4412862 | Method for the production of ferrochromium | Tsuneo Miyashita, Tsutomu Fukushima, Kiyoshi Kawasaki | 1983-11-01 |