Masahiro Ogawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-layer surface-treated steel plate having zinc-containing layer
- Patent number 4,450,209
- Issue date May 22, 1984
- Nippon Kokan Kabushiki Kaisha
- Tomihiro Hara
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Composite coating steel sheets having good corrosion resistance pai...
- Patent number 4,411,964
- Issue date Oct 25, 1983
- Nippon Kokan Kabushiki Kaisha
- Tomihiro Hara
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface treated steel sheets for paint coating
- Patent number 4,407,899
- Issue date Oct 4, 1983
- Nippon Kokan Kabushiki Kaisha
- Tomihiro Hara
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR