Eiji Kajiyama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface-treated steel sheet having improved corrosion resistance af...
- Patent number 6,143,422
- Issue date Nov 7, 2000
- Sumitomo Metal Industries, Ltd.
- Hiroyuki Nagai
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Surface-treated steel sheet for fuel tanks
- Patent number 5,932,359
- Issue date Aug 3, 1999
- Sumitomo Metal Industries, Ltd.
- Hiroyuki Nagai
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR