Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6344568 | Catalyst for gas phase partial oxidation | Masaaki Okuno, Hiromi Yunoki, Daisuke Nakamura, Michio Tanimoto, Tsukasa Takahashi | 2002-02-05 |
| 6133184 | Catalyst for catalytic oxidation use | Masaaki Okuno | 2000-10-17 |
| 5663114 | Catalyst for production of pyromellitic anhydride and method for production of pyromellitic anhydride | Tsukasa Takahashi, Tatsuya Kawabata, Masaaki Okuno, Yasuhisa Emoto, Kenji Ueda | 1997-09-02 |