Inventor
HIRAGA RYO
JP19 patents
Patents
19 patentsUS4775967AOct 4, 1988
Beam spot control device using a thin micro lens with an actuator
HITACHI LTD55 citations96
US6574966B2Jun 10, 2003
Gas turbine for power generation
HITACHI LTD32 citations92
US6546713B1Apr 15, 2003
Gas turbine for power generation, and combined power generation system
HITACHI LTD38 citations92
US6248969B1Jun 19, 2001
Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor
HITACHI LTD24 citations92
US6182439B1Feb 6, 2001
High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system
HITACHI LTD20 citations92
US6174132B1Jan 16, 2001
Steam-turbine power plant and steam turbine
HITACHI LTD17 citations92
US6123504ASep 26, 2000
Steam-turbine power plant and steam turbine
HITACHI LTD19 citations92
US6074169AJun 13, 2000
High and low pressure sides-integrating steam turbine, long blades thereof and combined cycle power generation system
HITACHI LTD28 citations92
US5964091AOct 12, 1999
Gas turbine combustor and gas turbine
HITACHI LTD42 citations92
US5961284AOct 5, 1999
High strength heat resisting cast steel, steam turbine casing, steam turbine power plant and steam turbine
HITACHI LTD24 citations92
US5898177AApr 27, 1999
Electron microscope
HITACHI LTD20 citations92
US5749228AMay 12, 1998
Steam-turbine power plant and steam turbine
HITACHI LTD33 citations92
US4850187AJul 25, 1989
Gas turbine having components composed of heat resistant steel
HITACHI LTD28 citations92
US5008072AApr 16, 1991
Heat resistant steel and gas turbine components composed of the same
HITACHI LTD19 citations81
US4912544AMar 27, 1990
Corrosion-resistant aluminum electronic material
HITACHI LTD16 citations74
US6419453B2Jul 16, 2002
Steam turbine rotor shaft
HITACHI LTD11 citations73
US4933228AJun 12, 1990
Thermosetting resin and prepreg and laminate using the same
HITACHI LTD9 citations73
US4886858ADec 12, 1989
Thermosetting resin and prepreg and laminate using the same
HITACHI LTD5 citations73
US4043945AAug 23, 1977
Method of producing thin layer methanation reaction catalyst
HITACHI LTD11 citations73