Masato Yamada

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Tokai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel sheet excellent in coating sharpness, defect-formation resist...
- Patent number 5,532,051
- Issue date Jul 2, 1996
- Nippon Steel Corporation
- Tetsuya Nishiura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...