Ryoichi Takahashi

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Fuji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming asymmetrical articles by rolling
- Patent number 5,060,497
- Issue date Oct 29, 1991
- Nissan Motor Co., Ltd.
- Ryoichi Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Device for forming asymmetrical articles by rolling
- Patent number 4,811,585
- Issue date Mar 14, 1989
- Nissan Motor Co., Ltd.
- Ryoichi Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...