Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6232473 | Process for producing 2-azabicyclo[2.2.1]hept-5-en-3-one | Takashi Fukumoto | 2001-05-15 |
| 6153765 | Process for producing and method of crystallizing 2-azabicyclo(2.2.1)hept-5-en-3-one | Takashi Fukumoto | 2000-11-28 |
| 6060609 | Process for producing and method of crystallizing 2-azabicyclo[2.2.1]hept-5-en-3-one | Takashi Fukumoto | 2000-05-09 |
| 5959142 | Process for refining methacrylic acid | Kazuo Wakimura, Tadaharu Hase, Yoshihiro Sezaki, Koji Fujita, Takeshi Isobe +1 more | 1999-09-28 |
| 5196578 | Purification process of methacrylic acid | Morimasa Kuragano, Takeshi Isobe, Nobutaka Ueda, Minoru Koshibe, Yoshihiro Sezaki +2 more | 1993-03-23 |