BSE Co., Ltd.
29Patents
21Active
29Granted
42Portfolio score
Filing activity: Dec 27, 2001 → Apr 17, 2020 · 15 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7903831B2 | Silicon based condenser microphone and packaging method for the same | Electricity | 117 | Active |
| US7233674B2 | Integrated base and electret condenser microphone using the same | Electricity | 9 | Expired |
| US7940944B2 | Directional silicon condenser microphone having additional back chamber | Electricity | 9 | Active |
| US6694032B2 | Electret condenser microphone | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD523002S1 | Condenser microphone | General | 7 | Expired |
| US8300870B2 | Variable directional microphone assembly and method of making the microphone assembly | Electricity | 7 | Active |
| US7269267B2 | Method of mounting condenser microphone on main PCB and condenser microphone adapted for the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7269268B2 | SMD type biased condenser microphone | Electricity | 6 | Expired |
| USD518478S1 | Condenser microphone | General | 6 | Expired |
| US8126166B2 | Condenser microphone and packaging method for the same | Electricity | 6 | Active |
| US8519492B2 | Silicon condenser microphone having an additional back chamber and a fabrication method therefor | Electricity | 5 | Active |
| US9301033B2 | Directional microphone and operating method thereof | Electricity | 5 | Active |
| US7949142B2 | Silicon condenser microphone having additional back chamber and sound hole in PCB | Electricity | 5 | Active |
| US7327851B2 | Parallelepiped condenser microphone | Electricity | 4 | Active |
| US8175299B2 | Condenser microphone mountable on main PCB | Emerging Cross-Sectional Technologies | 4 | Active |
| US6818092B2 | Multi-layer electret having ultra-high charge stability and method of manufacturing thereof | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7894616B2 | Condenser microphone employing wide band stop filter and having improved resistance to electrostatic discharge | Electricity | 3 | Expired |
| US8594363B2 | Voice coil and SMT micro speaker using the same | Electricity | 3 | Active |
| US8750550B2 | MEMS microphone | Electricity | 3 | Active |
| US9099569B2 | MEMS microphone | Electricity | 2 | Active |
| US7953235B2 | Directional silicon condenser microphone having additional back chamber | Electricity | 2 | Active |
| US7620197B2 | Casing of condenser microphone | Emerging Cross-Sectional Technologies | 2 | Active |
| US8295514B2 | MEMS microphone package having sound hole in PCB | Electricity | 1 | Active |
| US8625825B2 | Electrostatic speaker | Electricity | 1 | Active |
| US8284979B2 | Method of making sound hole in case of condenser microphone and the condenser microphone case | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.