Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5220098 | Process for separating 2, 7-dimethylnaphthalene under pressure | Kazumoto Nakamura, Shinji Aihara, Masami Takao, Hitoshi Hatakeyama | 1993-06-15 |
| 4966978 | Process for separating indole in refined form | Yoshiki Sato, Yoshitaka Yamamoto, Harumasa Tanabe | 1990-10-30 |
| 4565622 | Method of liquefying brown coal | Yukio Nakako, Tetsuo Matsumura, Toshio Ozawa, Kaizaburo Saito, Shin-ichi Katsushima +4 more | 1986-01-21 |