Satoshi Yahagi
20Patents
8h-index
15Co-inventors
68Inventor score
Filing activity: Nov 14, 1991 → Mar 30, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7417682B2 | Visible and infrared light photographing lens system | Electricity | 30 | Expired |
| US5808809A | Zoom lens | Physics | 21 | Expired |
| US5327289A | Luminous flux separating optical system | Electricity | 16 | Expired |
| US5694252A | Zoom lens | Physics | 14 | Expired |
| US5548445A | Zoom lens system | Physics | 13 | Expired |
| US6822801B2 | Device for determining focused state of taking lens | Electricity | 11 | Expired |
| US5745298A | Zoom lens system | Physics | 8 | Expired |
| US6522479B2 | Zoom lens | Physics | 8 | Expired |
| US6278559A | Zoom lens for television camera | Physics | 7 | Expired |
| US5764420A | Zoom lens | Physics | 7 | Expired |
| US6124983A | Zoom lens | Physics | 7 | Expired |
| US6924842B2 | Focusing state determining adapter for taking lens | Electricity | 7 | Expired |
| US5760966A | Zoom lens | Physics | 6 | Expired |
| US5657170A | Photographic lens apparatus | Physics | 6 | Expired |
| US6014268A | Two-group small zoom lens | Physics | 5 | Expired |
| US7848630B2 | Autofocus adapter | Physics | 4 | Active |
| US5459615A | Miniature fixed-focal-length lens system | Physics | 3 | Expired |
| US7262805B2 | Focus detecting system | Electricity | 2 | Expired |
| US6783246B2 | Ghost image prevention element for imaging optical system | Physics | 0 | Expired |
| US6809883B2 | Autofocus system | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.