Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344837 | Process for the dehydration and liquefaction of water-containing coal | Tadashi Komiyama, Shoichi Oi, Noriaki Ohnishi, Shinya Mori, Tadanobu Takata | 1982-08-17 |
| 4309192 | Treatment of water-containing coal | Shigemi Nagayoshi, Futao Sakata, Tetsuo Wada, Shoichi Oi | 1982-01-05 |