MURATA MANUFACTURING CO., LTD.
13,795Patents
9,492Active
13,795Granted
60Portfolio score
Filing activity: Apr 26, 1974 → Oct 21, 2024 · 988 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7501293B2 | Semiconductor device in which zinc oxide is used as a semiconductor material and method for manufacturing the semiconductor device | Electricity | 3,898 | Expired |
| US7427824B2 | Piezoelectric device and method for producing same | Electricity | 296 | Active |
| US7535152B2 | Lamb wave device | Electricity | 267 | Active |
| US6271803A | Chip antenna and radio equipment including the same | Electricity | 265 | Expired |
| US6028568A | Chip-antenna | Electricity | 245 | Expired |
| US9780759B2 | Elastic wave device and method for manufacturing the same | Emerging Cross-Sectional Technologies | 245 | Active |
| US8932686B2 | Method for producing piezoelectric composite substrate | Electricity | 242 | Active |
| US7868519B2 | Piezoelectric resonator including an acoustic reflector portion | Electricity | 241 | Active |
| US5936589A | Dielectric rod antenna | Electricity | 236 | Expired |
| US6292139A | Electronic part and a method of manufacturing the same | Electricity | 236 | Expired |
| US9748923B2 | Elastic wave device and manufacturing method for same | Emerging Cross-Sectional Technologies | 232 | Active |
| US7355560B2 | Dielectric lens, dielectric lens device, design method of dielectric lens, manufacturing method and transceiving equipment of dielectric lens | Electricity | 231 | Expired |
| US6489928B2 | Composite dielectric molded product and lens antenna using the same | Emerging Cross-Sectional Technologies | 225 | Expired |
| US6433741B1 | Directional coupler, antenna device, and transmitting-receiving device | Electricity | 225 | Expired |
| US5900847A | Dielectric lens apparatus | Electricity | 224 | Expired |
| US4636752A | Noise filter | Electricity | 219 | Expired |
| US6195058A | Dielectric lens, dielectric lens antenna including the same, and wireless device using the same | Electricity | 207 | Expired |
| US6462716B1 | Antenna device and radio equipment having the same | Electricity | 172 | Expired |
| US5874926A | Matching circuit and antenna apparatus | Electricity | 168 | Expired |
| US4821006A | Dielectric resonator apparatus | Electricity | 167 | Expired |
| US7345400B2 | Surface acoustic wave device | Electricity | 166 | Active |
| US6516503B1 | Method of making surface acoustic wave device | Emerging Cross-Sectional Technologies | 165 | Expired |
| US6164808A | Three-dimensional data input device | Physics | 160 | Expired |
| US8395366B2 | Power factor correction converter including input current detecting circuit | Emerging Cross-Sectional Technologies | 158 | Active |
| US7423604B2 | Waveguide horn antenna array and radar device | Electricity | 156 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.