Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8586785 | Process for producing catalyst for methacrylic acid production and process for producing methacrylic acid | Atsushi Sudo, Kazuo Shiraishi, Hiroyoshi Nowatari, Fumio Sakai, Tomoaki Kobayashi +1 more | 2013-11-19 |
| 7825061 | Catalyst for producing methacrylic acid and preparation method thereof | Atsushi Sudo, Yoshimasa Seo | 2010-11-02 |
| 6812188 | Catalyst for methacrylic acid production, coated catalyst, and process for producing the same | Yoshimasa Seo, Atsushi Sudo | 2004-11-02 |
| 6762148 | Catalyst process of making | Junzo Ohishi, Masahiro Senyo, Yoshimasa Seo | 2004-07-13 |
| 5959143 | Catalysts and process for the preparation thereof | Fumio Sakai, Koichi Wada, Kazuo Shiraishi, Toshitake Kojima, Atsushi Umejima +1 more | 1999-09-28 |
| 5716895 | Process for regeneration of catalysts | Kazuo Shiraishi, Atsushi Sudo | 1998-02-10 |
| 4745217 | Process for producing methacrylic acid | Mutsumi Matsumoto, Atsushi Sudo | 1988-05-17 |
| 4530916 | Catalyst for use in a methacrylic acid process | Mutsumi Matsumoto | 1985-07-23 |
| 4467113 | Process for producing methacrylic acid | Mutsumi Matsumoto | 1984-08-21 |
| 4273676 | Process for producing methacrylic acid and a catalyst | Mutsumi Matsumoto, Atsushi Sudo | 1981-06-16 |