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Mitsuo Kuriyama
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Ibaraki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of making steam turbine blade
Patent number
6,493,936
Issue date
Dec 17, 2002
Hitachi, Ltd.
Hiroyuki Doi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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 blade, method of manufacturing the same, steam turbin...
Patent number
6,206,634
Issue date
Mar 27, 2001
Hitachi, Ltd.
Hiroyuki Doi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Steam-turbine power plant and steam turbine
Patent number
6,174,132
Issue date
Jan 16, 2001
Hitachi, Ltd.
Masao Shiga
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steam-turbine power plant and steam turbine
Patent number
6,123,504
Issue date
Sep 26, 2000
Hitachi, Ltd.
Masao Shiga
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High strength heat resisting cast steel, steam turbine casing, stea...
Patent number
5,961,284
Issue date
Oct 5, 1999
Hitachi, Ltd.
Mitsuo Kuriyama
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Steam-turbine power plant and steam turbine
Patent number
5,749,228
Issue date
May 12, 1998
Hitachi, Ltd.
Masao Shiga
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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
Information
Patent Grant
Heat resistant steel and gas turbine components composed of the same
Patent number
5,008,072
Issue date
Apr 16, 1991
Hitachi, Ltd.
Masao Siga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Gas turbine having components composed of heat resistant steel
Patent number
4,850,187
Issue date
Jul 25, 1989
Hitachi, Ltd.
Masao Siga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Heat resisting steel
Patent number
4,585,478
Issue date
Apr 29, 1986
Hitachi, Ltd.
Takatoshi Yoshioka
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Heat resisting steel
Patent number
4,477,280
Issue date
Oct 16, 1984
Hitachi, Ltd.
Masao Shiga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Martensitic heat-resistant steel
Patent number
4,414,024
Issue date
Nov 8, 1983
Hitachi, Ltd.
Masao Siga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
Steam turbine blade, method of manufacturing the same, steam turbin...
Publication number
20010021346
Publication date
Sep 13, 2001
Hitachi, Ltd.
Hiroyuki Doi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...