Yoshikazu Sakamura

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Minami-Ku, Osaka-Shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for use in a former for automatically replacing punches
- Patent number 5,129,139
- Issue date Jul 14, 1992
- Yoshikazu Sakamura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Former having continuous forming-rolling assembly
- Patent number 4,546,630
- Issue date Oct 15, 1985
- Yoshikazu Sakamura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Tool attaching device for presses
- Patent number 4,393,685
- Issue date Jul 19, 1983
- Yoshikazu Sakamura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...