Takaaki Yokoyama

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Ichihara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for purifying difluoromethane
- Patent number 6,297,412
- Issue date Oct 2, 2001
- Asahi Glass Company, Limited
- Takaaki Yokoyama
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for purifying difluoromethane
- Publication number 20010021793
- Publication date Sep 13, 2001
- ASAHI GLASS COMPANY, LIMITED
- Takaaki Yokoyama
- C07 - ORGANIC CHEMISTRY