Victor Company of Japan, Ltd.
2,914Patents
405Active
2,914Granted
49Portfolio score
Filing activity: Feb 2, 1970 → Nov 2, 2012 · 391 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD591305S1 | Graphic user interface for a digital audio disc player | General | 275 | Expired |
| USD573581S1 | Headphones | General | 275 | Expired |
| USD587681S1 | Earphone | General | 253 | Expired |
| USD554627S1 | Headphone | General | 238 | Expired |
| US5936926A | Variable transfer rate data reproduction apparatus | Electricity | 236 | Expired |
| USD639776S1 | Portion of headphone | General | 212 | Expired |
| US4420711A | Circuit arrangement for different color light emission | Emerging Cross-Sectional Technologies | 201 | Expired |
| US5535008A | Method for jump-reproducing video data of moving picture coded with high efficiency | Electricity | 197 | Expired |
| US6424944B1 | Singing apparatus capable of synthesizing vocal sounds for given text data and a related recording medium | Physics | 191 | Expired |
| US6259424A | Display matrix substrate, production method of the same and display matrix circuit | Emerging Cross-Sectional Technologies | 191 | Expired |
| USD564495S1 | Earphone | General | 181 | Expired |
| USD635960S1 | Earphones | General | 180 | Expired |
| USD597084S1 | Earphone | General | 177 | Expired |
| US5175618A | Compression method for interlace moving image signals | Electricity | 170 | Expired |
| USD593107S1 | Graphic user interface for a digital audio disc player | General | 168 | Expired |
| US4549147A | Load impedance detector for audio power amplifiers | Electricity | 154 | Expired |
| US6343028B1 | Interface circuit and optical disk manufacturing system that uses same | Physics | 153 | Expired |
| US4472785A | Sampling frequency converter | Electricity | 151 | Expired |
| US5210734A | Information management method for appendage type additional information recording medium | Physics | 144 | Expired |
| US5732068A | Signal transmitting apparatus and signal receiving apparatus using orthogonal frequency division multiplexing | Electricity | 143 | Expired |
| US6928613B1 | Organization, selection, and application of video effects according to zones | Physics | 142 | Expired |
| US4941150A | Spread spectrum communication system | Electricity | 137 | Expired |
| US4985768A | Inter-frame predictive encoding system with encoded and transmitted prediction error | Electricity | 130 | Expired |
| US5116547A | Method of coloring polycarbonate extruded or molded products for optical members | Chemistry; Metallurgy | 129 | Expired |
| US5930217A | Optical information recording/reproducing system, optical information storage medium, and manufacturing method thereof | Physics | 127 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.