Sadayoshi Tajima

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hot-rolling equipment and a method of hot-rolling a slab
- Patent number 5,094,094
- Issue date Mar 10, 1992
- Hitachi, Ltd.
- Yutaka Muramatsu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Rolling mill and rolling mill method
- Patent number 5,038,591
- Issue date Aug 13, 1991
- Hitachi, Ltd.
- Sadayoshi Tajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Rolling mill and method of exchanging rolls of rolling mill
- Patent number 4,976,128
- Issue date Dec 11, 1990
- Hitachi, Ltd.
- Sadayoshi Tajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...