Yujiro Ito
48Patents
10h-index
32Co-inventors
75Inventor score
Filing activity: Jun 9, 1983 → Jan 8, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7756270B2 | Encryption device and decryption device | Electricity | 34 | Active |
| US5065455A | Optical atmospheric link system | Electricity | 25 | Expired |
| US5329395A | Optical atmospheric communication system | Electricity | 21 | Expired |
| US6362852B1 | Focus control apparatus and method for use with a video camera or the like | Electricity | 20 | Expired |
| US4570553A | Truck with automatic ground softening apparatus | Fixed Constructions | 20 | Expired |
| US6175451A | Optical axis correcting apparatus and method of correcting optical axis | Physics | 17 | Expired |
| US5448391A | Optical atmospheric link system | Electricity | 15 | Expired |
| US5506716A | Method, circuit, and apparatus for mitigating effects of wavelength-dependent atmospheric transmission characteristics on atmospheric optical telecommunication | Electricity | 13 | Expired |
| US4692721A | Dielectric rotary coupler | Electricity | 12 | Expired |
| US5210643A | Wave combining apparatus for semiconductor lasers | Physics | 11 | Expired |
| US4914272A | Laser beam soldering apparatus and soldering method using the same | Electricity | 9 | Expired |
| US6618177B1 | Light space-transmission device | Electricity | 9 | Expired |
| US5367398A | Optical atmospheric link system | Electricity | 7 | Expired |
| US6222587A | Focus control method and video camera | Electricity | 6 | Expired |
| US6658214B1 | Optical space transmission apparatus and information transmission method | Electricity | 6 | Expired |
| US7546030B2 | Autofocus device and method | Electricity | 6 | Active |
| US6034727A | Focus control method and video camera apparatus | Electricity | 6 | Expired |
| US7973852B2 | Auto-focus apparatus, image capture apparatus, and auto-focus method | Physics | 6 | Active |
| US5237166A | Optical atmospheric link apparatus with light path correction | Physics | 6 | Expired |
| US5221985A | Optical communication system | Electricity | 5 | Expired |
| US7593053B2 | Autofocus device method | Electricity | 5 | Active |
| US6275262A | Focus control method and video camera apparatus | Electricity | 4 | Expired |
| US7536096B2 | Autofocus device and method | Electricity | 3 | Active |
| US6155690A | Optical axis correction device | Physics | 3 | Expired |
| US4958902A | Optical space transmission apparatus | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.