Seiichiro Nambu

Follow

Person

Chengdu, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Tube expanding method for manufacturing metal tube
- Patent number 9,707,614
- Issue date Jul 18, 2017
- JFE Steel Corporation
- Tatsuro Katsumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
TUBE EXPANDING METHOD FOR MANUFACTURING METAL TUBE
- Publication number 20150114073
- Publication date Apr 30, 2015
- JFE STEEL CORPORATION
- Tatsuro Katsumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...