Ebara Densan Ltd.
14Patents
0Active
14Granted
32Portfolio score
Filing activity: Jun 30, 1980 → Mar 15, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7061211B2 | Gas turbine generating apparatus | Emerging Cross-Sectional Technologies | 164 | Expired |
| US4437811A | Submersible pump with alternate pump operation control means | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US5923108A | Canned motor | Electricity | 42 | Expired |
| US6979914B2 | Power generating apparatus | Electricity | 24 | Expired |
| US4749552A | Automatic titration analysis apparatus | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6888263B2 | Gas turbine generator | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7233082B2 | Interconnecting power generation system | Electricity | 10 | Expired |
| US6424871B1 | Rotating machine integrated with controller, and inverter | Electricity | 9 | Expired |
| US6666987B1 | Liquid etchant and method for roughening copper surface | Electricity | 6 | Expired |
| US7514813B2 | Electric power supply system | Electricity | 6 | Expired |
| US6092994A | Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6902626B2 | Method for roughening copper surface | Electricity | 3 | Expired |
| US7189336B2 | Etchant, method for roughening copper surface and method for producing printed wiring board | Electricity | 3 | Expired |
| US7338266B2 | Screw pump and method of operating the same | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.