Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965011 | Method for reducing deposition of cokes in heat-refining process of petroleum high-molecular hydrocarbons, and additive used in the method | Toshifumi Hatanaka, Kazuya Hata, Tetsushi Kawamura, Hirokazu Itoh | 1999-10-12 |