Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673733 | Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid | Naomasa Kimura, Hiroto Kasuga, Eiichi Shiraishi | 2004-01-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673733 | Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid | Naomasa Kimura, Hiroto Kasuga, Eiichi Shiraishi | 2004-01-06 |