Toru Umeda
4Patents
2h-index
6Co-inventors
41Inventor score
Filing activity: Jul 12, 1990 → Feb 24, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5068769A | Horizontal sighting apparatus for head-lamps | Performing Operations; Transporting | 46 | Expired |
| US5388037A | Lens for a lighting device mounted on vehicle | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US8684575B2 | Lighting unit | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8236183B2 | Methods and systems for filtration | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.