Masami Ito
48Patents
13h-index
75Co-inventors
84Inventor score
Filing activity: Sep 19, 1977 → Oct 28, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5748305A | Method and apparatus for particle inspection | Physics | 60 | Expired |
| US5980054A | Panel-form illuminating system | Physics | 47 | Expired |
| US6068382A | Panel-form illuminating system | Physics | 34 | Expired |
| US5894345A | Optical method of detecting defect and apparatus used therein | Physics | 30 | Expired |
| US5717485A | Foreign substance inspection apparatus | Physics | 29 | Expired |
| US5627678A | Fourier transform optical apparatus and optical information | Physics | 24 | Expired |
| US6154278A | Optical encoder for optically measuring displacement of moving body | Physics | 21 | Expired |
| US5526191A | Fourier transform lens assembly | Physics | 20 | Expired |
| US5981941A | Optical encorder for detection having a moving reference point | Physics | 20 | Expired |
| US5532823A | Method of measuring optical characteristics of liquid crystal cells, measurement equipment therefor and method for manufacturing liquid crystal devices | Physics | 17 | Expired |
| US5754157A | Method for forming column signals for a liquid crystal display apparatus | Physics | 15 | Expired |
| US5986727A | Back light illuminator for liquid crystal display apparatus | Physics | 14 | Expired |
| US5153437A | Optical encoder having a transparent lens plate with an array of lenses | Physics | 14 | Expired |
| US5046754A | Vehicle height control device adapted also for operation after turn off of ignition switch | Performing Operations; Transporting | 13 | Expired |
| US5669229A | Ceiling-mounted type air conditioner | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5708488A | Phase type spatial light modulator having an output substantially uniform in amplitude | Physics | 13 | Expired |
| US6892009B2 | Apparatus and method for transmitting and detecting light | Physics | 13 | Expired |
| US5579136A | Optical information processor employing a phase type spatial light modulator | Physics | 11 | Expired |
| US5699153A | Method and apparatus for optical inspection | Physics | 10 | Expired |
| US5661295A | Optical encoder with dual diffraction gratings | Physics | 8 | Expired |
| US5754341A | Phase grating, its fabricating method, optical encoder, motor using the optical encoder, and robot using the motor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5363455A | Optical information processor | Physics | 7 | Expired |
| US5694218A | Optical encoder including a plurality of phase adjusting gratings | Physics | 7 | Expired |
| US5383056A | Fourier transform lens assembly and optical information processor employing same | Physics | 6 | Expired |
| US5696374A | Optical encoder using doubled diffraction angle based on first and second diffraction gratings | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.