Hiroshi Aratani

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Roll changing apparatus of rolling mill
- Patent number 6,425,278
- Issue date Jul 30, 2002
- Mitsubishi Heavy Industries, Ltd.
- Hiroshi Aratani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and machine for rolling a metal workpiece at a reduced rolli...
- Patent number 5,105,638
- Issue date Apr 21, 1992
- Mitsubishi Jukogyo Kabushiki Kaisha
- Yoshiki Mito
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Four high mill of the paired-roll-crossing type
- Patent number 4,453,393
- Issue date Jun 12, 1984
- Mitsubishi Jukogyo Kabushiki Kaisha
- Hiroyuki Hino
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...