Hiroyuki Chiba

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Antibiotics Mer-AF1032A and Mer-AF1032B
- Patent number 5,232,943
- Issue date Aug 3, 1993
- Mercian Corporation
- Hitosi Agematu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tylosin derivatives and processes for producing the same
- Patent number 4,933,439
- Issue date Jun 12, 1990
- Sanraku Incorporated
- Takeo Yoshioka
- C07 - ORGANIC CHEMISTRY