Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992619 | Process for separating methyl substituted naphthalene by crystallization under pressure | Shunichi Koide, Shinji Aihara, Hiroshi Takeshita, Masami Takao, Hitoshi Hatakeyama | 1991-02-12 |
| 4966978 | Process for separating indole in refined form | Yoshiki Sato, Yoshitaka Yamamoto, Yutaka Mito | 1990-10-30 |