Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981832 | Catalyst composition for hydrogenation of heavy hydrocarbon oil and process for producing the catalyst | Kinya Tawara, Kazushi Usui, Tomohiro Yoshinari, Shigenori Nakashizu | 1991-01-01 |