Isamu Katsuyama

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Yokkaichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing 2-methylspiro(1,3-oxathiolane-5,3')quinuclidine
- Patent number 5,571,918
- Issue date Nov 5, 1996
- Ishihara Sangyo Kaisha Ltd.
- Koji Hayashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing dichloromethylpyridines
- Patent number 5,290,944
- Issue date Mar 1, 1994
- Ishihara Sangyo Kaisha Ltd.
- Rikuo Nasu
- C07 - ORGANIC CHEMISTRY