Shinichi Nagahashi

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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
Method for manufacturing a high strength rail with good toughness
- Patent number 4,933,024
- Issue date Jun 12, 1990
- NKK Corporation
- Kozo Fukuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for heat-treating steel rail head
- Patent number 4,886,558
- Issue date Dec 12, 1989
- NKK Corporation
- Toyokazu Teramoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Wear resistant rails having capability of preventing propagation of...
- Patent number 4,767,475
- Issue date Aug 30, 1988
- Nippon Kokan Kabushiki Kaisha
- Kozo Fukuda
- 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