Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359532 | Energy trapping type piezoelectric filter with a shielding conductive member on a bottom insulating base plate upper surface | Takeshi Sugiyama | 2002-03-19 |
| 6160462 | Energy trapping type piezoelectric filter with identical piezoelectric substrates | Takeshi Sugiyama | 2000-12-12 |