Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562059 | Method of preparing alumina | Takashi Sendo, Munekazu Nakamura | 1985-12-31 |
| 4555394 | Process for the preparation of alumina | Takashi Sendo | 1985-11-26 |
| 4444655 | Hydrotreatment of heavy hydrocarbon oils containing asphaltenes, and catalysts therefor | Yoshimi Shiroto, Takeo Ono, Munekazu Nakamura | 1984-04-24 |
| 4439312 | Catalyst for hydrotreating heavy hydrocarbon oils, method of preparing same and process for hydrotreating heavy hydrocarbon oils | Takeo Ono, Yoshimi Shiroto | 1984-03-27 |
| 4424142 | Catalyst for hydrotreatment of heavy hydrocarbon oils | Yoshimi Shiroto, Munekazu Nakamura, Takeo Ono | 1984-01-03 |
| 4422960 | Catalysts for hydrotreatment of heavy hydrocarbon oils containing asphaltenes | Yoshimi Shiroto, Takeo Ono, Munekazu Nakamura | 1983-12-27 |
| 4367165 | Catalyst for hydrotreating heavy hydrocarbon oils and method of preparing same | Takeo Ono, Yoshimi Shiroto | 1983-01-04 |
| 4326991 | Process for preparing a catalyst for hydrotreatment of heavy hydrocarbon oils | Yoshimi Shiroto, Munekazu Nakamura | 1982-04-27 |