Sigetomi Miyoshi

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Ibaraki-shi, Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oval cross section metal tube producing device and producing method
- Patent number 7,219,522
- Issue date May 22, 2007
- Taisai Kako Co., Ltd.
- Yuji Maeda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Oval cross section metal tube producing device and producing method
- Publication number 20050247097
- Publication date Nov 10, 2005
- Yuji Maeda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...