Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346218 | Cyclization process to form cephem ring | Teruji Tsuji, Yoshio Hamashima, Mitsuru Yoshioka, Masayuki Narisada, Hiroshi Tanida +1 more | 1982-08-24 |
| 4332722 | Cyclization to form cephem ring and intermediates therefor | Teruji Tsuji, Yoshio Hamashima, Mitsuru Yoshioka, Masayuki Narisada, Hiroshi Tanida +1 more | 1982-06-01 |