Osamu Fujimoto

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Fuji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of recovering thiourea dioxide
- Patent number 4,238,411
- Issue date Dec 9, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osami Ohura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing thiourea dioxide
- Patent number 4,235,812
- Issue date Nov 25, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osamu Fujimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing thiourea dioxide
- Patent number 4,233,238
- Issue date Nov 11, 1980
- Tokai Denka Kogyo Kabushiki Kaisha
- Osami Ohura
- C07 - ORGANIC CHEMISTRY