Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4760153 | Process for producing maleic anhydride | Junichi Toyoda, Toshimasa Kushihara, Ikuo Kurimoto, Shigemi Osaka, Yoshiyuki Nakanishi | 1988-07-26 |
| 4665200 | Method for preparing pyromellitic acid and/or pyromellitic anhydride | Yoshiyuki Nakanishi, Yoji Akazawa, Ikuo Kurimoto, Shinichi Uchida, Hisashi Yoshikawa | 1987-05-12 |