Oki Electric Industry Co., Ltd.
5,002Patents
874Active
5,002Granted
50Portfolio score
Filing activity: Oct 24, 1973 → May 6, 2024 · 458 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6465892B1 | Interconnect structure for stacked semiconductor device | Electricity | 533 | Expired |
| US6472293B2 | Method for manufacturing an interconnect structure for stacked semiconductor device | Electricity | 316 | Expired |
| US4877947A | Transaction processing system | Physics | 279 | Expired |
| US5502790A | Speech recognition method and system using triphones, diphones, and phonemes | Physics | 269 | Expired |
| US6740964B2 | Semiconductor package for three-dimensional mounting, fabrication method thereof, and semiconductor device | Electricity | 230 | Expired |
| US6731778B1 | Photographing apparatus and monitoring system using same | Electricity | 230 | Expired |
| US5157475A | Semiconductor device having a particular conductive lead structure | Electricity | 229 | Expired |
| US5095196A | Security system with imaging function | Physics | 209 | Expired |
| US6243681A | Multiple language speech synthesizer | Physics | 207 | Expired |
| US6006303A | Priority encoding and decoding for memory architecture | Physics | 206 | Expired |
| US5294286A | Process for forming a thin film of silicon | Emerging Cross-Sectional Technologies | 203 | Expired |
| USD326450S | Automotive telephone control unit | General | 202 | Expired |
| US7446567B2 | Signal transmission apparatus and interconnection structure | Electricity | 196 | Active |
| US5187810A | Route guidance system for provding a mobile station with optimum route data in response to a guidance request together with base station data indicative of an identification of a base station | Physics | 193 | Expired |
| US5311483A | Synchronous type semiconductor memory | Physics | 187 | Expired |
| US4845740A | Radiotelephone system adapted to read a credit card | Electricity | 187 | Expired |
| US6499014B1 | Speech synthesis apparatus | Physics | 185 | Expired |
| US5199543A | Apparatus for and method of discriminating bill | Physics | 185 | Expired |
| US5641113A | Method for fabricating an electronic device having solder joints | Emerging Cross-Sectional Technologies | 184 | Expired |
| US5201395A | Bill examination device | Physics | 183 | Expired |
| US6208021A | Semiconductor device, manufacturing method thereof and aggregate type semiconductor device | Electricity | 178 | Expired |
| US6542624B1 | Iris code generating device and iris identifying system | Physics | 166 | Expired |
| US5835144A | Methods of coding and decoding moving-picture signals, using self-resynchronizing variable-length codes | Electricity | 161 | Expired |
| US5854480A | Tag with IC capacitively coupled to antenna | Electricity | 160 | Expired |
| US5983197A | Monitoring method and monitoring system for automatic transaction machine | Physics | 160 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.