Katsuyoshi Nakada
12Patents
5h-index
16Co-inventors
59Inventor score
Filing activity: Jan 16, 2004 → Jun 10, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7622869B2 | Discharge lamp ballast and projector | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7511432B2 | Discharge lamp lighting device, illumination device, and projector | Electricity | 11 | Expired |
| US7692391B2 | Discharge lamp ballast, lighting system and projector | Electricity | 6 | Active |
| US7504782B2 | Discharge lamp lighting apparatus and projector | Electricity | 6 | Expired |
| US8207680B2 | Discharge lamp ballast having an auto-transformer for high voltage detection | Emerging Cross-Sectional Technologies | 5 | Active |
| US8581510B2 | Discharge lamp lighting apparatus | Electricity | 4 | Active |
| US8324829B2 | Startup control for a high pressure discharge lamp ballast | Emerging Cross-Sectional Technologies | 2 | Active |
| US9699851B2 | Dimming lighting circuit and luminaire | Electricity | 1 | Active |
| US8222834B2 | HID lamp ballast with controlled DC step down circuit | Electricity | 1 | Active |
| US9055638B2 | Lighting device and lighting fixture | Electricity | 0 | Active |
| US9131570B2 | Lighting device and luminaire | Electricity | 0 | Active |
| US9743471B2 | Lighting device and lighting fixture for current control with a solid-state lighting element | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.