Seiko Instruments & Electronics Ltd.
126Patents
0Active
126Granted
42Portfolio score
Filing activity: Oct 24, 1979 → Nov 29, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4659971A | Robot controlling system | Emerging Cross-Sectional Technologies | 211 | Expired |
| US4789804A | Analytical device and method utilizing a piezoelectric crystal biosensor | Emerging Cross-Sectional Technologies | 159 | Expired |
| US4624737A | Process for producing thin-film transistor | Electricity | 108 | Expired |
| US4622656A | Non-volatile semiconductor memory | Electricity | 100 | Expired |
| US4693563A | Ferro-electric liquid crystal electro-optical device | Physics | 68 | Expired |
| US4447753A | Miniature GT-cut quartz resonator | Electricity | 67 | Expired |
| US4609930A | Thin film transistor | Electricity | 65 | Expired |
| US4821236A | Semiconductor nonvolatile memory | Electricity | 61 | Expired |
| US4721058A | Paper cutting unit of automatic drawing machines | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4484382A | Method of adjusting resonant frequency of a coupling resonator | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4704559A | Matrix type multi-color display device | Physics | 44 | Expired |
| US4853682A | Data stored display device | Electricity | 43 | Expired |
| US4780759A | Sampling clock generation circuit of video signal | Electricity | 41 | Expired |
| US4610507A | Color liquid crystal display device having multicolor polarizers | Physics | 41 | Expired |
| US4601097A | Method of producing thin-film transistor array | Electricity | 40 | Expired |
| USD304930S | Portable data input terminal | General | 39 | Expired |
| US4839854A | Data collection system having stationary unit with electromagnetic induction circuitry for bidirectionally relaying data | Electricity | 39 | Expired |
| US4744039A | Robot with self teaching of a linear reference position | Performing Operations; Transporting | 39 | Expired |
| US4699850A | Ornamental part | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4705358A | Substrate for active matrix display | Physics | 30 | Expired |
| US4477877A | Coordinate determining device | Physics | 29 | Expired |
| US4522691A | Method for manufacturing a multicolor filter and a multicolor display device | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4455576A | Picture display device | Physics | 28 | Expired |
| US4779957A | Colored liquid crystal electro-optical device having a buffer layer and method for manufacturing the same | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4525710A | Picture display device | Physics | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.