Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836909 | Process of thermally cracking heavy petroleum oil | Yuzo Takahashi, Hideo Hashimoto, Toru Takatsuka, Takeru Iimori, Hitoshi Maekawa +4 more | 1989-06-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836909 | Process of thermally cracking heavy petroleum oil | Yuzo Takahashi, Hideo Hashimoto, Toru Takatsuka, Takeru Iimori, Hitoshi Maekawa +4 more | 1989-06-06 |