Kouji Muramatsu

Follow

Person

Chiyoda-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Piercing apparatus, plug used for piercing apparatus, and method fo...
- Patent number 9,545,658
- Issue date Jan 17, 2017
- Nippon Steel & Sumitomo Metal Corporation
- Kazuhiro Shimoda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
PIERCING APPARATUS, PLUG USED FOR PIERCING APPARATUS, AND METHOD FO...
- Publication number 20140260494
- Publication date Sep 18, 2014
- Kazuhiro Shimoda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...