Masahiro Kagawa

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for smoothing steel pipe seam portion
- Patent number 6,375,059
- Issue date Apr 23, 2002
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for smoothing a welded seam of steel pipe
- Patent number 6,216,511
- Issue date Apr 17, 2001
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Pipe forming roll apparatus and method
- Patent number 6,216,940
- Issue date Apr 17, 2001
- Kawasaki Steel Corporation
- Koji Sugano
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Pipe forming roll apparatus and method
- Patent number 6,041,632
- Issue date Mar 28, 2000
- Kawasaki Steel Corporation
- Koji Sugano
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of and apparatus for controlling operation of a cross helica...
- Patent number 4,760,724
- Issue date Aug 2, 1988
- Kawasaki Steel Corporation
- Shuji Okazaki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method for smoothing steel pipe seam portion
- Publication number 20010013533
- Publication date Aug 16, 2001
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...