Yuuki Narita

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Funabashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
High purity iron oxide and method for production hereof
- Patent number 5,316,746
- Issue date May 31, 1994
- Kawasaki Steel Corporation
- Yuuki Narita
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing high purity silica
- Patent number 4,973,462
- Issue date Nov 27, 1990
- Kawatetsu Mining Company, Ltd.
- Seki Akira
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for purifying silica
- Patent number 4,676,964
- Issue date Jun 30, 1987
- Kawatetsu Mining Company, Ltd.
- Akira Seki
- C01 - INORGANIC CHEMISTRY