Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307034 | Ultrathin multimode quartz crystal filter element | Takao Morita, Osamu Ishii | 1994-04-26 |
| 5218328 | Structure for a resonator using an ultrathin piezoelectric substrate | Takao Morita, Osamu Ishii | 1993-06-08 |
| 5185550 | Structure for supporting a resonator using an ultrathin piezoelectric plate in a package | Takao Morita, Osamu Ishii | 1993-02-09 |