Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696905 | Dielectric filter device having perpendicular bores for improved pass band characteristics | Katsumi Umeda, Takaaki Uchiyama | 2004-02-24 |
| 6677836 | Dielectric filter device having conductive strip removed for improved filter characteristics | Takaaki Uchiyama, Katsumi Umeda | 2004-01-13 |