Yasuyuki Ootsuka

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Punch guiding apparatus and stripper plate used therefor
- Patent number 6,311,594
- Issue date Nov 6, 2001
- Amada Company, Limited
- Yasuyuki Ootsuka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of punching a punch guide hole in a blank holder of a punch...
- Patent number 6,152,005
- Issue date Nov 28, 2000
- Amada Metrecs Company, Limited
- Yasuyuki Ootsuka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...