Masahiko Yoshini

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for making non-oriented high silicon steel sheet
- Patent number 4,986,341
- Issue date Jan 22, 1991
- Nippon Kokan Kabushiki Kaisha
- Sadakazu Masuda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...