Sumio Sudo
12Patents
6h-index
16Co-inventors
63Inventor score
Filing activity: Feb 4, 1981 → Oct 16, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5360290A | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5909982A | Large-depth underground drainage facility and method of running same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6527509B2 | Turbo machines | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5487621A | Large-depth underground drainage facility and method of running same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6102618A | Large-depth underground drainage facility and method of running same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5624226A | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5154570A | Vertical shaft pump | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6540482B2 | Turbo-type machines | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6302643A | Turbo machines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5634740A | Large-depth underground drainage facility and method of running same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5733065A | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4362463A | Movable blade pump | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.