Tadao Kai
40Patents
12h-index
33Co-inventors
77Inventor score
Filing activity: Aug 13, 1990 → Dec 31, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6128035A | Anti-blur image pickup device | Physics | 89 | Expired |
| US5463443A | Camera for preventing camera shake | Physics | 73 | Expired |
| US7161621B2 | Image-capturing device with position detector for vibration reduction | Electricity | 44 | Expired |
| US5016039A | Camera system | Physics | 42 | Expired |
| US5717960A | Image vibration correcting device | Physics | 28 | Expired |
| US5740473A | Camera for preventing camera shake | Physics | 23 | Expired |
| US5717611A | Slight motion detecting device | Physics | 21 | Expired |
| US5402197A | Camera shake alarming apparatus | Physics | 21 | Expired |
| US5930531A | Image shifting apparatus | Electricity | 16 | Expired |
| US5619735A | Optical apparatus for correcting image deviation | Physics | 14 | Expired |
| US5655158A | Blurring motion detection device | Physics | 12 | Expired |
| US6009279A | Photographing apparatus having anti-vibration function | Physics | 12 | Expired |
| US5953544A | Camera having an image blur suppression device | Physics | 11 | Expired |
| US5576787A | Camera having an image blur suppression device | Physics | 11 | Expired |
| US5752091A | Camera having animage blur suppression device | Physics | 10 | Expired |
| US5881325A | Apparatus having an image vibration reduction optical system which is guided to, and locked at, an origin position by a driving member | Physics | 10 | Expired |
| US5267015A | Photometric apparatus | Physics | 9 | Expired |
| US5617159A | Image blur suppression device with inertial pendulum system for a camera | Physics | 8 | Expired |
| US5715479A | Blur prevention device for preventing image blur | Physics | 8 | Expired |
| US5495313A | Light metering device for camera | Physics | 8 | Expired |
| US5313246A | Exposure control device in a camera | Physics | 7 | Expired |
| US5771404A | Shake preventing apparatus in camera | Physics | 7 | Expired |
| US5592251A | Method and apparatus for preventing image deflection in an optical system | Physics | 7 | Expired |
| US5852750A | Attitude adjustment device and method | Physics | 6 | Expired |
| US6567618B2 | Camera | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.