Yumi Ikeda
7Patents
6h-index
5Co-inventors
48Inventor score
Filing activity: Feb 25, 1997 → Jan 31, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6139175A | Light source for endoscopes, having different numerical-aperture light collection system | Physics | 86 | Expired |
| US6124883A | TV observation system for endoscopes | Human Necessities | 39 | Expired |
| US5971576A | Light source device for endoscopes | Physics | 16 | Expired |
| US7522185B2 | TV observation system for endoscopes including a light source unit having LEDs | Human Necessities | 7 | Expired |
| US6022123A | Light source device | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5918974A | Optical illumination device | Physics | 6 | Expired |
| US6142659A | Optical illumination device | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.