Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H328 | Purification of cephalosporins | Hiroaki Koizumi, Satoru Kawatake | 1987-09-01 |
| 4581173 | Production of hydroxymethylbutenoic acids via oxidation | Teruji Tsuji, Mamoru Tanaka, Hiroyuki Ishitobi | 1986-04-08 |
| 4511738 | Process for preparing phosphine oxides | Yasuhiro Nishitani, Mamoru Tanaka, Wataru Nagata | 1985-04-16 |
| 4491668 | Process for preparing L-ascorbic acid | Kenji Ikawa, Masumi Kiyokawa | 1985-01-01 |