Hotaka Takeuchi
8Patents
5h-index
8Co-inventors
48Inventor score
Filing activity: Jul 19, 1999 → May 29, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6757111B2 | Zoom lens | Physics | 15 | Expired |
| US6312168A | Camera | Physics | 12 | Expired |
| US7362509B2 | Zoom lens | Physics | 7 | Expired |
| US7508601B2 | Imaging lens | Physics | 6 | Active |
| US6992840B2 | Photographing lens | Physics | 6 | Expired |
| US6985305B2 | Zoom lens | Physics | 5 | Expired |
| US6898023B2 | Zoom lens | Physics | 3 | Expired |
| US6980369B2 | Zoom lens | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.