Ken-ichi Sato

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Roll for a rolling mill, method of producing the same and the rolli...
- Patent number 4,697,320
- Issue date Oct 6, 1987
- Hitachi, Ltd.
- Joo Ishihara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...