Junichi Nakao

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Yonago, JP

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Patents Grantslast 30 patents

Information Patent Grant
Punch unit for punching a hole in a soft metal sheet
- Patent number 6,698,324
- Issue date Mar 2, 2004
- Hitachi Metals, Ltd.
- Hidekazu Hashimoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Punch unit for punching a hole in a soft metal sheet
- Patent number 6,622,601
- Issue date Sep 23, 2003
- Hitachi Metals Ltd.
- Hidekazu Hashimoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cutting carriage for sheet cutting and sheet cutter using same
- Patent number 5,881,623
- Issue date Mar 16, 1999
- Hitachi Metals, Ltd.
- Hitoshi Otani
- B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

Information Patent Application
Punch unit for punching a hole in a soft metal sheet
- Publication number 20010020409
- Publication date Sep 13, 2001
- Hidekazu Hashimoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Punch unit for punching a hole in a soft metal sheet
- Publication number 20010011493
- Publication date Aug 9, 2001
- Hidekazu Hashimoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...