Videocolor S.p.A.
36Patents
0Active
36Granted
30Portfolio score
Filing activity: Oct 23, 1975 → Nov 3, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5107999A | Cathode-ray tube having improved 16.times.9 aspect ratio faceplate | Electricity | 24 | Expired |
| US4308485A | Shadow mask support in a color cathode ray tube | Electricity | 23 | Expired |
| US5166576A | Deflection yoke arrangement with overlapping deflection coils | Electricity | 20 | Expired |
| US5750054A | Anti-glare, anti-static coating for a reflective-transmissive surface | Electricity | 20 | Expired |
| US5121028A | Deflection winding with spaces or tabs intermediate its front and rear ends | Electricity | 19 | Expired |
| US5165614A | Winding method for the non-radial winding of a cathode tube deflector and a deflector made thereby | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4364079A | Process of analysis of the convergence of a cathode-ray tube with three ganged guns and a device forming a pick-up allowing implementation of this process | Electricity | 11 | Expired |
| US5170094A | Magnetic field compensation apparatus | Electricity | 10 | Expired |
| US5145511A | Method for manufacturing a metallized luminescent screen for a cathode-ray tube | Electricity | 10 | Expired |
| US5072151A | Color picture tube having improved shadow mask frame | Electricity | 9 | Expired |
| US5378959A | Shadow mask type color picture tube with reduced moire | Electricity | 8 | Expired |
| US5223769A | Scan velocity modulation apparatus | Electricity | 8 | Expired |
| US4237479A | Blanking voltage generator for a cathode ray tube | Electricity | 8 | Expired |
| US5306190A | Forming process for a sheet of perforated metal and process implementation device | Electricity | 7 | Expired |
| US5800234A | Method for manufacturing a metallized luminescent screen for a cathode-ray tube | Electricity | 6 | Expired |
| US4417698A | Winding process for cathode-ray tube deflection rings | Electricity | 5 | Expired |
| US4319166A | Method and apparatus of automatically processing and correcting the blocking voltage of an electron gun | Electricity | 4 | Expired |
| US4316127A | Process for maintaining an electric oscillation circuit and horizontal deflection device for a cathode-ray tube | Electricity | 4 | Expired |
| US5263887A | Method of forming a color picture tube shadow mask | Electricity | 4 | Expired |
| US5302927A | Saddle coil deflection winding, apparatus and method of making thereof | Electricity | 4 | Expired |
| US5185672A | Liner for deflection yoke | Electricity | 4 | Expired |
| US6242855A | Color picture tube shadow mask having a column-to-column spacing with a pseudo-cyclic variation | Electricity | 3 | Expired |
| US5525858A | Color picture tube with reduced primary and secondary moire | Electricity | 3 | Expired |
| US6614152B1 | Frame/mask structure for cathode ray tube | Electricity | 3 | Expired |
| US4021820A | Lighthouse having a main filter and a supplemental filter | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.