Heiji Uchiyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
High purity phosphoric acid and process of producing the same
- Patent number 7,470,414
- Issue date Dec 30, 2008
- Nippon Chemical Industrial Co., Ltd.
- Kenichi Ishikawa
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
High purity phosphoric acid and method for production thereof
- Publication number 20060073088
- Publication date Apr 6, 2006
- Kenichi Ishikawa
- C01 - INORGANIC CHEMISTRY