Hiroyuki Sako
19Patents
12h-index
29Co-inventors
78Inventor score
Filing activity: Dec 24, 1990 → Jul 22, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5477936A | Electric motor vehicle and battery unit for electric motor vehicle | Emerging Cross-Sectional Technologies | 79 | Expired |
| US8339053B2 | LED dimming apparatus | Emerging Cross-Sectional Technologies | 60 | Active |
| US5613569A | Electric motor vehicle and battery unit for electric motor vehicle | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5513721A | Cover structure and battery storing case structure for an electric vehicle | Performing Operations; Transporting | 46 | Expired |
| US5647450A | Cooling system included in a battery charger for an electric vehicle | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5421427A | Battery placement for an electric vehicle | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6357542B1 | Article storage area for motorcycles | Performing Operations; Transporting | 34 | Expired |
| US5182702A | Inverter device | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5495149A | Power supply | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5771159A | Power supply device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6246182A | Electronic track lighting system | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5565740A | Electronic ballast for hot cathode discharge lamps | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6336579B1 | Helmet storage area for motorcycles | Performing Operations; Transporting | 12 | Expired |
| US5644480A | Power source device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5449979A | Inverter power supply | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5540312A | Charging cord storing structure for an electric vehicle | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8575857B2 | LED lighting device | Emerging Cross-Sectional Technologies | 3 | Active |
| US8143809B2 | LED illuminating device | Electricity | 3 | Active |
| US9066407B2 | Power source unit for LED lamps, and LED lamp system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.