Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4401278 | Apparatus for granulating coal | Nobuo Yoshii, Kazuo Harada | 1983-08-30 |
| 4389306 | Process for removing ash from coal | Takeshi Nakanishi, Kazuo Harada, Nobuyuki Yoshida | 1983-06-21 |
| 4346010 | Process for recovering fine coal particles from slurry of finely divided coal | Nobuo Yoshii, Kazuo Harada | 1982-08-24 |