Takao Umetsu
14Patents
7h-index
30Co-inventors
62Inventor score
Filing activity: May 31, 1988 → May 21, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4933702A | Camera with night photography apparatus | Physics | 51 | Expired |
| US5970261A | Zoom camera, mode set up device and control method for zoom camera | Physics | 18 | Expired |
| US6519419B2 | Method of controlling power source of camera | Physics | 16 | Expired |
| US5159379A | Flash control method and apparatus for variable focal length camera | Physics | 13 | Expired |
| US5148201A | Zooming control apparatus for a camera | Physics | 9 | Expired |
| US4831402A | Camera with changeable focal length | Physics | 8 | Expired |
| US5023645A | Lens position detecting device for camera | Physics | 7 | Expired |
| US5293191A | Camera | Physics | 7 | Expired |
| US6374056B1 | Camera with magnetic recording device | Physics | 5 | Expired |
| US5157433A | Method and apparatus for controlling continuous photography | Physics | 5 | Expired |
| US6801718B2 | Camera having LCD panel displaying groups of camera modes | Physics | 4 | Expired |
| US4941005A | Photographic camera | Physics | 3 | Expired |
| US5184166A | Self-photographing method for cameras | Physics | 1 | Expired |
| US5337107A | Preparatory winding type camera | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.