Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690704 | Additive for carbonaceous solid-water slurry, method for production thereof, and carbonaceous solid-water slurry compositions | Kenichiro Hayashi, Satoshi Yamada, Hideyuki Tahara | 1997-11-25 |