Hiroyasu Omata

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Patents Grantslast 30 patents

Information Patent Grant
Method of improving functions of surface of alloy steel by means of...
- Patent number 4,692,191
- Issue date Sep 8, 1987
- Nippon Steel Corporation
- Shigeyoshi Maeda
- B44 - DECORATIVE ARTS
Information Patent Grant
Method for improving corrosion resistance of bright annealed stainl...
- Patent number 4,612,095
- Issue date Sep 16, 1986
- Nippon Steel Corporation
- Hiroyasu Omata
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR