Yoshito Kawai

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser beam machining device
- Patent number 4,806,724
- Issue date Feb 21, 1989
- Kawasaki Steel Corp.
- Yoshito Kawai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for cooling rolling mill rolls
- Patent number 4,741,193
- Issue date May 3, 1988
- Hitachi, Ltd.
- Tomoaki Kimura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for butt welding steel strips by using a laser beam in a...
- Patent number 4,623,777
- Issue date Nov 18, 1986
- Kawasaki Steel Corporation
- Masaki Aihara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR