Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744184 | Piezoelectric resonator | — | 2004-06-01 |
| 6420945 | Piezoelectric resonator having internal electrode films, piezoelectric component and ladder filter formed therefrom | Takashi Yamamoto | 2002-07-16 |
| 6121858 | Piezoelectric ladder filter with series resonators having a pair of grooves and method of forming same | Takashi Yamamoto | 2000-09-19 |
| 6060963 | Ladder-type piezoelectric filter with lid providing predetermined contact pressure and method of manufacturing same | Takashi Yamamoto | 2000-05-09 |
| 6046530 | Piezoelectric resonance component | — | 2000-04-04 |