Inventor
SIGA MASAO
JP20 patents
Patents
20 patentsUS6224334B1May 1, 2001
Steam turbine, rotor shaft thereof, and heat resisting steel
HITACHI LTD23 citations92
US6182439B1Feb 6, 2001
High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system
HITACHI LTD20 citations92
US6074169AJun 13, 2000
High and low pressure sides-integrating steam turbine, long blades thereof and combined cycle power generation system
HITACHI LTD28 citations92
US5906096AMay 25, 1999
Compressor for turbine and gas turbine
HITACHI LTD17 citations92
US5383768AJan 24, 1995
Steam turbine, rotor shaft thereof, and heat resisting steel
HITACHI LTD30 citations92
US5360318ANov 1, 1994
Compressor for gas turbine and gas turbine
HITACHI LTD26 citations92
US4850187AJul 25, 1989
Gas turbine having components composed of heat resistant steel
HITACHI LTD28 citations92
US4504554AMar 12, 1985
Rotor shaft of steam turbine
HITACHI LTD33 citations92
US5548174AAug 20, 1996
Steel rotor shafts of electric machines
HITACHI LTD19 citations91
US5536146AJul 16, 1996
Combined generator system
HITACHI LTD15 citations81
US5008072AApr 16, 1991
Heat resistant steel and gas turbine components composed of the same
HITACHI LTD19 citations81
US6092989AJul 25, 2000
Compressor for turbine and gas turbine
HITACHI LTD14 citations74
US5428953AJul 4, 1995
Combined cycle gas turbine with high temperature alloy, monolithic compressor rotor
HITACHI LTD13 citations74
US5624235AApr 29, 1997
Steam turbine, rotor shaft thereof, and heat resisting steel
HITACHI LTD9 citations73
US4497670AFeb 5, 1985
Rotor shaft and manufacturing method thereof
HITACHI LTD17 citations73
US5437742AAug 1, 1995
Steel rotor shafts for electric machines
HITACHI LTD5 citations72
US5288455AFeb 22, 1994
Steel for rotor shafts of electric machines and method and product thereof
HITACHI LTD9 citations72
US4414024ANov 8, 1983
Martensitic heat-resistant steel
HITACHI LTD11 citations71
US4585478AApr 29, 1986
Heat resisting steel
HITACHI LTD8 citations70
US5569338AOct 29, 1996
Steam turbine rotor shaft thereof and heat resisting steel
HITACHI LTD2 citations62