Fumio Sakamoto

Follow

Person

Ibaraki-machi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Stainless steel type 13Cr5Ni having high toughness, and usage of th...
- Patent number 5,879,132
- Issue date Mar 9, 1999
- Hitachi, Ltd.
- Kenichi Usami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Stainless steel type 13Cr5Ni having high toughness, and usage the same
- Patent number 5,601,411
- Issue date Feb 11, 1997
- Hitachi, Ltd.
- Kenichi Usami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR