Katsura; Toyozo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Katsura; Toyozo.The latest application filed is for "penicillins substituted with heterocyclic groups".
- Katsura; Toyozo - Takarazuka JA
| Patent | Date |
|---|---|
| Penicillins substituted with heterocyclic groups Grant 3,951,955 - Tobiki , et al. April 20, 1 | 1976-04-20 |
| Penicillins substituted with heterocyclic groups Grant 3,864,329 - Tobiki , et al. February 4, 1 | 1975-02-04 |
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