Kotaro Yagishita

Follow

Person

Hiroshima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of forming hollow parts
- Patent number 4,722,211
- Issue date Feb 2, 1988
- Mitsubishi Jukogyo Kabushiki Kaisha
- Hidehiko Tsukamoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...