HIDEYUKI YAMANAKA

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TOKYO, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-strength, damage-resistant rail having hardness distribution o...
- Patent number 6,361,625
- Issue date Mar 26, 2002
- NKK Corporation
- Masahisa Fujikake
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
High-strength, damage-resistant rail
- Patent number 5,209,792
- Issue date May 11, 1993
- NKK Corporation
- Gordon O. Besch
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
HIGH-STRENGTH, DAMAGE-RESISTANT RAIL HAVING HARDNESS DISTRIBUTION O...
- Publication number 20020011283
- Publication date Jan 31, 2002
- MASAHISA FUJIKAKE
- C21 - METALLURGY OF IRON