Yoshimi Maeno

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steam turbine, rotor shaft thereof, and heat resisting steel
- Patent number 6,224,334
- Issue date May 1, 2001
- Hitachi, Ltd.
- Masao Siga
- C21 - METALLURGY OF IRON
Information Patent Grant
Steam turbine, rotor shaft thereof, and heat resisting steel
- Patent number 5,624,235
- Issue date Apr 29, 1997
- Hitachi, Ltd.
- Masao Siga
- C21 - METALLURGY OF IRON
Information Patent Grant
Steam turbine rotor shaft thereof and heat resisting steel
- Patent number 5,569,338
- Issue date Oct 29, 1996
- Hitachi, Ltd.
- Masao Siga
- C21 - METALLURGY OF IRON
Information Patent Grant
Combined generator system
- Patent number 5,536,146
- Issue date Jul 16, 1996
- Hitachi, Ltd.
- Masao Siga
- C21 - METALLURGY OF IRON
Information Patent Grant
Steam turbine, rotor shaft thereof, and heat resisting steel
- Patent number 5,383,768
- Issue date Jan 24, 1995
- Hitachi, Ltd.
- Masao Siga
- C21 - METALLURGY OF IRON