Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970183 | Hydrocarbon oil catalytic cracking catalyst compositions | Tatsuo Masuda, Kouichi Ohama, Katsuhiro Shirono, Masamitsu Ogata, Yoichi Nishimura | 1990-11-13 |
| 4472366 | Method of preparing crystalline aluminosilicate zeolites | Hiroshi Takahashi | 1984-09-18 |