Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253309 | Method for production of methacrylic acid | Hiroyuki Uhara, Hideyuki Hironaka, Hideo Onodera | 2007-08-07 |
| 6699999 | Process for producing pyromellitic anhydride | Tsukasa Takahashi, Hiroyuki Uhara, Etsushige Matsunami | 2004-03-02 |