Hidetoshi Okuyama

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Novel nitrogen-containing monoterpene derivatives
- Patent number 4,347,356
- Issue date Aug 31, 1982
- Taito Co., Ltd.
- Ryousuke Touyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Red coloring composite and the method for its production
- Patent number 4,247,698
- Issue date Jan 27, 1981
- Taito Co., Ltd.
- Ryosuke Toyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nitrogen-containing monoterpene derivatives
- Patent number 4,232,159
- Issue date Nov 4, 1980
- Taito Co., Ltd.
- Ryousuke Touyama
- C07 - ORGANIC CHEMISTRY