Isao Sumida
10Patents
7h-index
30Co-inventors
62Inventor score
Filing activity: Jul 17, 1974 → Jan 9, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5272737A | Nuclear reactor installation | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4879087A | Nuclear power plant | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4877574A | Method of and apparatus for controlling power of natural circulation reactor | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5295169A | Reactor containment facilities | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5211906A | Reactor containment vessel | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5021212A | Primary containment vessel with outer pool | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5120490A | Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4440151A | Solar heat collector | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5217680A | Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3996790A | Apparatus for measuring saturation temperature of liquid metal oxide | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.