Shin Kumagai

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Tokai-mura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Valves having high wear-resistance and high corrosion-resistance
- Patent number 8,888,069
- Issue date Nov 18, 2014
- Hitachi-GE Nuclear Energy, Ltd.
- Yusaku Maruno
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Valve having facing layers of co-free Ni-base Alloy
- Patent number 5,633,094
- Issue date May 27, 1997
- Hitachi, Ltd.
- Kikuo Takeshima
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
VALVES HAVING HIGH WEAR-RESISTANCE AND HIGH CORROSION-RESISTANCE
- Publication number 20110278490
- Publication date Nov 17, 2011
- Yusaku Maruno
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20030180175
- Publication date Sep 25, 2003
- Hitachi, Ltd.
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20030147769
- Publication date Aug 7, 2003
- Hitachi, Ltd.
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON
Information Patent Application
Corrosion-resisting and wear-resisting alloy and device using the same
- Publication number 20020064678
- Publication date May 30, 2002
- Yoshihisa Kiyotoki
- C21 - METALLURGY OF IRON