Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076509 | Process for producing acrylic acid | Etsushige Matsunami, Masafumi Sugio | 2011-12-13 |
| 7951978 | Process for producing acrolein and glycerin-containing composition | Yoshitaka Arita, Hideaki Tsuneki, Masaki Okada, Masaru Kirishiki | 2011-05-31 |
| 7683220 | Process for production of acrolein | Etsushige Matsunami, Tsukasa Takahashi, Yoshitaka Arita | 2010-03-23 |
| 6927307 | Method for reactivating catalyst for methacrylic acid preparation | Eiichi Shiraishi | 2005-08-09 |
| 6878847 | Catalyst for preparation of unsaturated aldehyde and unsaturated carboxylic acid | Eiichi Shiraishi | 2005-04-12 |
| 6784134 | Catalyst for preparation of unsaturated aldehyde and unsaturated carboxylic acid | Eiichi Shiraishi | 2004-08-31 |
| 6673733 | Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid | Naohiro Fukumoto, Naomasa Kimura, Eiichi Shiraishi | 2004-01-06 |
| 6664206 | Method for reactivating catalyst for methacrylic acid preparation | Eiichi Shiraishi | 2003-12-16 |
| 6664416 | Process for producing (meth)acrylic acid | Michio Tanimoto | 2003-12-16 |
| 6624326 | Method for preparing heteropolyacid catalyst and method for producing methacrylic acid | Kaori Nakatani, Eiichi Shiraishi | 2003-09-23 |
| 6458740 | Method for preparing heteropolyacid catalyst and method for producing methacrylic acid | Kaori Nakatani, Eiichi Shiraishi | 2002-10-01 |