Katsumi Ohsumi
22Patents
11h-index
69Co-inventors
78Inventor score
Filing activity: Aug 29, 1978 → Jul 6, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4828790A | Inhibition of deposition of radioactive substances on nuclear power plant components | Physics | 28 | Expired |
| US4820473A | Method of reducing radioactivity in nuclear plant | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5203984A | Monitoring system for plant operation condition and its in-situ electrochemical electrode | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4853638A | Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control | Physics | 17 | Expired |
| US4722823A | Nuclear power plant providing a function of suppressing the deposition of radioactive substance | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4894202A | Method of inhibiting radioactive substances from eluting into cooling water in a nuclear plant and an apparatus therefor | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5715290A | Reactor water control method in BWR power plant, BWR power plant having low radioactivity concentration reactor water and fuel clad tube for BWR | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4927598A | Radioactivity reduction method of a nuclear power plant and a nuclear power plant reduced in radioactivity | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4937038A | Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4880595A | Process and apparatus for cleaning nuclear reactor cooling water | Physics | 13 | Expired |
| US4764338A | Method for operating boiling water-type atomic power plant | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5398269A | Water quality control method and device for nuclear power plant, and nuclear power plant | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5398268A | Nuclear power plant having a water chemistry control system for a primary cooling system thereof and an operation method thereof | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4533514A | Nuclear reactor degassing method and degassing system | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4940564A | Suppression of deposition of radioactive substances in boiling water type, nuclear power plant | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4293382A | Method of starting up a nuclear reactor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5084235A | Direct cycle-type atomic power plant with means for suppressing transfer from a liquid phase to a vapor phase of radioactive nitrogen oxides | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5892805A | Boiling water reactor and its operating method | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5186798A | Solution quantitative analysis apparatus, quantitative analysis methods, and nuclear reactor water quality control system | Physics | 4 | Expired |
| US6487265B1 | Treatment method of nuclear reactor internal component | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4564499A | Method of inhibiting corrosion of carbon steel piping of condensate and feed water systems in power generating plant | Chemistry; Metallurgy | 2 | Expired |
| US5761263A | Nuclear fuel rod and method of manufacturing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.