Haruhito Tsuboi

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Prereduction furnace of a smelting reduction facility of iron ore
- Patent number 5,149,487
- Issue date Sep 22, 1992
- NKK Corporation
- Masahiro Matsuo
- C21 - METALLURGY OF IRON
Information Patent Grant
Prereduction furnace of a smelting reduction facility of iron ore
- Patent number 5,129,630
- Issue date Jul 14, 1992
- NKK Corporation
- Tatsuro Ariyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Coupling mechanism for coupling together a pusher tug and a barge
- Patent number 4,165,705
- Issue date Aug 28, 1979
- Nippon Kokan Kabushiki Kaisha
- Tatsuki Yoshikai
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT