Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7714125 | Process for producing penam compound useful for preparing tazobactam | Isao Wada, Yoshihisa Tokumaru | 2010-05-11 |
| 7674898 | Anhydrous crystal of β-lactam compound and method for preparation thereof | Shigetoshi Yaguchi | 2010-03-09 |
| 7547777 | Penam crystals and process for producing the same | Yoshihisa Tokumaru | 2009-06-16 |
| 6660855 | Crystals of penicillin and process for the production thereof | Ichiro Kawahara | 2003-12-09 |
| 6274730 | Process for producing halogenated .beta.-lactam compound | Ichirou Kawahara, Shigetoshi Yaguchi, Hiroaki Asai | 2001-08-14 |
| 4925934 | Process for preparation of beta-lactam derivatives | Masatoshi Taniguchi, Michio Sasaoka, Kiyotoshi Matsumura, Ichiro Kawahara, Kenji Kaze +1 more | 1990-05-15 |
| 4906623 | 3-Imidazolium cephalosporin derivatives | Kiyotoshi Matsumura, Hiroshi Akagi, Daisuke Suzuki | 1990-03-06 |