Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9029609 | Phenol purification process | Masahiro Hatakeyama, Kozo Yasuda | 2015-05-12 |
| 8283504 | Process for producing 2-propanol | Kunihiko Morizane, Katsunari Higashi, Shinji Senoo, Kenji Doi | 2012-10-09 |
| 5998677 | Process for the production of phenol | Naoto Yasaka | 1999-12-07 |
| 5264636 | Process for producing highly pure phenol | Tetsuo Imamura | 1993-11-23 |
| 4960958 | Catalysts for catalytic pyrolysis of phenol distillation residue and process for recovering useful substances by pyrolysis the same | Tetsuo Imamura, Kichiro Shoji | 1990-10-02 |