KYUSHU ELECTRIC POWER CO., INC.
38Patents
20Active
38Granted
48Portfolio score
Filing activity: Feb 17, 1981 → Aug 7, 2018 · 12 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6325749A | Robot vehicle for hot-line job | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6331887A | Outdoor range finder | Physics | 42 | Expired |
| US8963501B2 | Voltage equalization device, method, program, and power storage system | Emerging Cross-Sectional Technologies | 34 | Active |
| US5592647A | PTC panel heater with small rush current characteristic and highly heat insulating region corresponding to heater location to prevent local overheating | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6717790B1 | Creeping discharge lightning protection device | Electricity | 11 | Expired |
| US7002110B2 | Electric smokeless roaster | Performing Operations; Transporting | 8 | Expired |
| US4393920A | Manipulator for working in a heat exchanger | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8729861B2 | Power storage system | Emerging Cross-Sectional Technologies | 7 | Active |
| US4904416A | Cement solidification treatment of spent ion exchange resins | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5998050A | Composite metal oxide material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4883185A | Suspension type transporter for a bolt drawing machine and positioning controller therefor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5407907A | Method of preparing metal oxide crystal | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7952045B2 | Material piece scooping device | Physics | 4 | Active |
| US7871586B2 | Mercury removal system and method | Emerging Cross-Sectional Technologies | 4 | Active |
| US6540473B2 | Robot vehicle for hot-line job | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8997665B2 | Slag-melting burner apparatus | Emerging Cross-Sectional Technologies | 3 | Active |
| US6265853A | Power source unit for transferring energy between power sources that power an electric vehicle | Electricity | 3 | Expired |
| US7780143B2 | Gate valve | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US5627142A | Method of producing composite metal oxide material | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7394338B2 | Superconducting coil | Emerging Cross-Sectional Technologies | 2 | Active |
| US6504092B1 | Method of preventing insulated wire breakage and momentary interruption | Electricity | 2 | Expired |
| US8917060B2 | Secondary cell control system | Emerging Cross-Sectional Technologies | 2 | Active |
| US8653792B2 | Power storage system including a plurality of battery modules and on/off devices or voltage converters | Emerging Cross-Sectional Technologies | 2 | Active |
| US6237341A | Boiler scale collecting device before steam turbine | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US8994334B2 | Battery state-of-charge calculation device | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.