Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481304 | Catalyst for producing phthalic anhydride | Takahisa Sato, Yoshiyuki Nakanishi, Takehiko Suzuki | 1984-11-06 |
| 4418045 | Method for disposal of waste gas and apparatus therefor | Takahisa Sato, Kunio Sano | 1983-11-29 |
| 4284571 | Process for producing phthalic anhydride and catalyst therefor | Takahisa Sato, Yoshiyuki Nakanishi, Takehiko Suzuki | 1981-08-18 |