Toshio Atsumi

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Ooi, JA

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Patents Grantslast 30 patents

Information Patent Grant
Analgesic compositions containing 2-cyanoalkylbenzomorphan derivati...
- Patent number 3,962,446
- Issue date Jun 8, 1976
- Sumitomo Chemical Company, Limited
- Toshio Atsumi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of 2-benzoylalkylbenzomorphan
- Patent number 3,953,441
- Issue date Apr 27, 1976
- Sumitomo Chemical Company, Limited
- Toshio Atsumi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-Benzazocine compounds
- Patent number 3,951,984
- Issue date Apr 20, 1976
- Sumitomo Chemical Company, Limited
- Michio Kimura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel process for producing 2-ketoethylbenzomorphan derivatives and...
- Patent number 3,950,346
- Issue date Apr 13, 1976
- Sumitomo Chemical Company, Limited
- Toshio Atsumi
- C07 - ORGANIC CHEMISTRY