Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111211 | Method of distilling dimethyl sulfoxide and multistage distillation tower | Haruo Murano | 2021-09-07 |
| 8071832 | Method of converting ethylbenzene and process for producing p-xylene | Takahiro Yoshikawa, Masatoshi Watanabe | 2011-12-06 |
| 6972347 | Method for converting aromatic hydrocarbons | Akira Kitamura, Shinobu Yamakawa | 2005-12-06 |
| 6359184 | Process for production of xylene | Hajime Kato, Hitoshi Tanaka, Kazuyoshi Iwayama | 2002-03-19 |
| 6060417 | Catalyst composition for transalkylation of alkylaromatic hydrocarbons and process for production of xylene | Hajime Kato, Hitoshi Tanaka, Kazuyoshi Iwayama | 2000-05-09 |
| 6040490 | Process for producing aromatic compounds by dealkylation, transalkylation, or disproportionation | Shinobu Yamakawa, Hirohito Okino, Hajime Kato, Kazuyoshi Iwayama, Hiroshi Konta +1 more | 2000-03-21 |
| 5847256 | Process for producing xylene | Shinobu Yamakawa, Hirohito Okino | 1998-12-08 |