Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376239 | Process for separating electrodeposited metal in electrolytic refining | Saburo Tanaka, Akiyoshi Tatsui, Akira Yoshioka | 1994-12-27 |
| 5290412 | Apparatus for separating electrodeposited metal in electrolytic refining | Saburo Tanaka, Hiroyuki Morozumi, Akiyoshi Tatsui, Akira Yoshioka | 1994-03-01 |
| 4430500 | Process for purifying cephalosporin compounds | Tomoya Yamamoto, Masayuki Nomura, Tomoyoshi Hachiya | 1984-02-07 |
| 4423215 | Method of preparing sodium salts of imidazoledicarboxylic acid substituted cephalosporin derivatives | Naohiko Yasuda, Hisao Iwagami, Yasuo Irie, Eiji Nakanishi | 1983-12-27 |