Itsuo Takanashi
122Patents
21h-index
57Co-inventors
93Inventor score
Filing activity: Feb 9, 1976 → Oct 20, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5005998A | Cartridge for a printer system | Performing Operations; Transporting | 109 | Expired |
| US5144471A | Optical scanning system for scanning object with light beam and displaying apparatus | Physics | 107 | Expired |
| US5239322A | Display apparatus | Electricity | 64 | Expired |
| US5130826A | Optical system having photoconductive members and optical means for decomposing and composing the polarized lights for a color picture display | Electricity | 53 | Expired |
| US5277501A | Method for transferring hot-melt ink to a recording medium | Performing Operations; Transporting | 46 | Expired |
| US4933751A | Tri-color separating optical system | Electricity | 43 | Expired |
| US5140443A | Image scanning apparatus | Electricity | 40 | Expired |
| US4945423A | Reproducing apparatus for charge latent image recording medium | Electricity | 38 | Expired |
| US4527171A | Thermal transfer printing employing a binder | Performing Operations; Transporting | 36 | Expired |
| US5124545A | Light-to-light conversion element provided with wavelength selecting reflection layer and imaging device provided with the light-to-light conversion element | Physics | 35 | Expired |
| US5299042A | Light-to-light conversion method, display unit using the same, and light-to-light conversion element incorporated therein | Physics | 32 | Expired |
| US4831452A | Image pickup device having a photoconductive optical modulator element | Electricity | 29 | Expired |
| US5161007A | Recording head with carrier generation and transport layers adjacent a photo-modulation layer for recording information included in an electro-magnetic radiation-beam applied thereto | Physics | 29 | Expired |
| US4227208A | Optical comb filter | Physics | 27 | Expired |
| US4330797A | View-finder for television camera | Physics | 26 | Expired |
| US5164854A | Polarization converter for converting unpolarized light to linearly polarized light | Physics | 26 | Expired |
| US5122895A | Polarization converter for converting randomly polarized light to linearly polarized light | Physics | 24 | Expired |
| US4590490A | Thermal transfer color recorder | Electricity | 22 | Expired |
| US5031047A | Image information processing method and apparatus thereof | Physics | 22 | Expired |
| US5220343A | Method for transferring hot-melt transparent protective material to a recording medium | Physics | 21 | Expired |
| USRE34947A | Light-to-light conversion element provided with wavelength selecting reflection layer and imaging device provided with the light-to-light conversion element | General | 21 | Expired |
| US5264951A | Spatial light modulator system | Physics | 20 | Expired |
| US5191408A | Color imaging system with selectively openable optical shutter | Physics | 20 | Expired |
| US5502490A | Display unit having a light-to-light conversion element | Physics | 19 | Expired |
| US5408341A | Method and apparatus for recording optical information in a photoelectric transducer controlled by a sensed condition thereof | Physics | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.