Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989412 | Hydrodemetallizing catalyst for hydrocarbon oil and process of hydrodemetallizing hydrocarbon oil therewith | Akio Okagami, Akio Furuta, Shinichiro Suhara | 1999-11-23 |
| 4230886 | Method of obtaining dried terephthalic acid | Kenzo Yamamoto, Katsunobu Yamaguchi, Akio Okagami | 1980-10-28 |
| 4219669 | Method of treating mother liquor of reaction in terephthalic acid production | Kenzo Yamamoto, Katsunobu Yamaguchi, Akio Okagami | 1980-08-26 |