Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820405 | Method of liquefying coal | Tatsuo Fukuyama, Toshihiko Okada, Sanseki Moriguchi, Eisuke Ogata | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820405 | Method of liquefying coal | Tatsuo Fukuyama, Toshihiko Okada, Sanseki Moriguchi, Eisuke Ogata | 1989-04-11 |