Ichiro Ohnuki
34Patents
16h-index
26Co-inventors
77Inventor score
Filing activity: Jul 2, 1984 → Jan 26, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4862208A | Information transmitting device for camera | Physics | 95 | Expired |
| US4859842A | Multi-directional focus state detection apparatus | Physics | 47 | Expired |
| US4774539A | Camera having a focus detecting apparatus | Physics | 33 | Expired |
| US4908645A | Automatic focus adjusting device | Physics | 31 | Expired |
| US4693574A | Film information reading device | Physics | 30 | Expired |
| US4812869A | Focus detecting apparatus | Physics | 29 | Expired |
| US5061951A | Auto focus device | Physics | 28 | Expired |
| US4969003A | Autofocus device | Physics | 26 | Expired |
| US5020369A | Image stabilizing optical device | Physics | 26 | Expired |
| US4974002A | Automatic focus adjusting device | Physics | 22 | Expired |
| US4972221A | Camera having an automatic focus adjusting apparatus | Physics | 19 | Expired |
| US4714332A | Film data reading device | Physics | 18 | Expired |
| US4959677A | Device for detecting the focus adjusted state of an objecting lens | Physics | 17 | Expired |
| US4792668A | Apparatus for detecting focusing state of objective lens | Physics | 17 | Expired |
| US4728785A | Focus detecting device using adjustable inclined sensing means | Physics | 17 | Expired |
| US4974003A | Camera having an autofocus device | Physics | 16 | Expired |
| US5583076A | Method for manufacturing a semiconductor photo-sensor | Electricity | 15 | Expired |
| US4792669A | Focus detecting device having two selectively movable lenses | Physics | 15 | Expired |
| US5061953A | Focus adjusting apparatus for use in a camera or the like | Physics | 15 | Expired |
| US5089843A | Auto focus device with predictive focussing | Physics | 15 | Expired |
| US5060002A | Automatic focus adjusting device | Physics | 14 | Expired |
| US4800410A | Focus detecting apparatus for selecting the operating process in conformity with the contrast of an object | Physics | 13 | Expired |
| US5005037A | Auto focus adjusting device | Physics | 13 | Expired |
| US5140359A | Multi-point distance measuring apparatus | Physics | 12 | Expired |
| US5912504A | Semiconductor photo-sensor and method for manufacturing the same | Electricity | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.