Tetsuo Kohno
39Patents
13h-index
22Co-inventors
77Inventor score
Filing activity: Jun 12, 1991 → Feb 22, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6404561B1 | Taking lens apparatus | Physics | 79 | Expired |
| US6449433B2 | Taking lens device | Physics | 33 | Expired |
| US5283693A | Compact zoom lens system | Physics | 33 | Expired |
| US5257135A | Compact zoom lens system | Physics | 29 | Expired |
| US6028717A | Zoom lens system | Physics | 28 | Expired |
| US6229655A | Zoom lens system | Physics | 25 | Expired |
| US6025961A | Zoom lens system having two lens units | Physics | 24 | Expired |
| US6038084A | Zoom lens system | Physics | 21 | Expired |
| US5455714A | Zoom lens system | Physics | 21 | Expired |
| US6532114B1 | Zoom lens system | Physics | 19 | Expired |
| US5872660A | Taking lens system | Physics | 15 | Expired |
| US6101043A | Zoom lens system | Physics | 15 | Expired |
| US5539582A | Zoom lens system | Physics | 14 | Expired |
| US7692869B2 | Image-taking lens unit | Physics | 13 | Active |
| US6456443B2 | Zoom lens system | Physics | 13 | Expired |
| US5963377A | Taking optical system for video shooting | Physics | 12 | Expired |
| US5872659A | Zoom lens system | Physics | 11 | Expired |
| US5446592A | Compact zoom lens system | Physics | 11 | Expired |
| US7443599B2 | Magnification varying optical system and image taking apparatus | Physics | 11 | Active |
| US6118592A | Zoom lens system | Physics | 11 | Expired |
| US5424870A | Compact zoom lens system | Physics | 11 | Expired |
| US6011648A | Optical system having an optical element made of resin | Physics | 11 | Expired |
| US6191895A | Zoom lens system | Physics | 9 | Expired |
| US6002529A | Zoom lens system | Physics | 8 | Expired |
| US5999324A | Optical system for focusing an object up on an image surface of a solid-state image device | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.