Inventor
OHSUMI KATSUMI
JP22 patents
Patents
22 patentsUS5398269AMar 14, 1995
Water quality control method and device for nuclear power plant, and nuclear power plant
HITACHI LTD24 citations92
US5203984AApr 20, 1993
Monitoring system for plant operation condition and its in-situ electrochemical electrode
HITACHI LTD40 citations92
US5715290AFeb 3, 1998
Reactor water control method in BWR power plant, BWR power plant having low radioactivity concentration reactor water and fuel clad tube for BWR
HITACHI LTD28 citations91
US4927598AMay 22, 1990
Radioactivity reduction method of a nuclear power plant and a nuclear power plant reduced in radioactivity
HITACHI LTD27 citations91
US4894202AJan 16, 1990
Method of inhibiting radioactive substances from eluting into cooling water in a nuclear plant and an apparatus therefor
HITACHI LTD23 citations91
US4853638AAug 1, 1989
Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control
HITACHI LTD36 citations91
US4820473AApr 11, 1989
Method of reducing radioactivity in nuclear plant
HITACHI LTD32 citations91
US4828790AMay 9, 1989
Inhibition of deposition of radioactive substances on nuclear power plant components
HITACHI LTD42 citations89
US6487265B1Nov 26, 2002
Treatment method of nuclear reactor internal component
HITACHI LTD17 citations83
US5892805AApr 6, 1999
Boiling water reactor and its operating method
HITACHI LTD18 citations83
US4764338AAug 16, 1988
Method for operating boiling water-type atomic power plant
HITACHI LTD21 citations82
US5186798AFeb 16, 1993
Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system
HITACHI LTD7 citations74
US4937038AJun 26, 1990
Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system
HITACHI LTD17 citations74
US5398268AMar 14, 1995
Nuclear power plant having a water chemistry control system for a primary cooling system thereof and an operation method thereof
HITACHI LTD18 citations73
US4940564AJul 10, 1990
Suppression of deposition of radioactive substances in boiling water type, nuclear power plant
HITACHI LTD16 citations73
US4722823AFeb 2, 1988
Nuclear power plant providing a function of suppressing the deposition of radioactive substance
HITACHI LTD19 citations73
US4880595ANov 14, 1989
Process and apparatus for cleaning nuclear reactor cooling water
HITACHI LTD16 citations72
US4564499AJan 14, 1986
Method of inhibiting corrosion of carbon steel piping of condensate and feed water systems in power generating plant
HITACHI LTD7 citations72
US5084235AJan 28, 1992
Direct cycle-type atomic power plant with means for suppressing transfer from a liquid phase to a vapor phase of radioactive nitrogen oxides
HITACHI LTD12 citations70
US4533514AAug 6, 1985
Nuclear reactor degassing method and degassing system
HITACHI LTD13 citations69
US5761263AJun 2, 1998
Nuclear fuel rod and method of manufacturing the same
HITACHI LTD4 citations61
US4293382AOct 6, 1981
Method of starting up a nuclear reactor
HITACHI LTD6 citations61