Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340464 | Method for thermal cracking of heavy petroleum oil | Hisatsugu Kaji, Tomizo Endo, Takao Ishihara | 1982-07-20 |
| 4242196 | Mass production system of highly aromatic petroleum pitch | Ryoichi Takahashi, Takuji Hosoi, Tutomu Konno | 1980-12-30 |
| 4214979 | Method of thermally cracking heavy petroleum oil | Hajime Nakanishi, Kiyoji Ozaki, Toshio Shinozuka, Masato Izumi, Hisatsugu Kaji +2 more | 1980-07-29 |