Hiroyuki Ogawa

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning method and cleaning apparatus for surface of sheet steel
- Patent number 5,884,643
- Issue date Mar 23, 1999
- Kawasaki Steel Corporation
- Masuto Shimizu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...