Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498542 | Dielectric resonant device, dielectric filter, dielectric duplexer, communication apparatus including the same, and method for forming input-output electrode of the dielectric resonant device | Jinsei Ishihara, Hideyuki Kato | 2002-12-24 |
| 6433651 | Dielectric filter, composite dielectric filter, duplexer, and communication apparatus having resonance-line holes with offset steps | Jinsei Ishihara, Hideyuki Kato | 2002-08-13 |
| 6420942 | Dielectric filter, dielectric duplexer, and communication apparatus | Motoharu Hiroshima, Shohachi Nishijima, Hideyuki Kato, Haruo Matsumoto | 2002-07-16 |
| 6362705 | Dielectric filter unit, duplexer, and communication apparatus | Jinsei Ishihara, Hideyuki Kato | 2002-03-26 |
| 6351198 | Dielectric filter, duplexer, and communication apparatus | Hideki Tsukamoto, Jinsei Ishihara, Hideyuki Kato | 2002-02-26 |
| 6340921 | Dielectric filter, dielectric duplexer, and communication apparatus using the same | Jinsei Ishihara, Hideyuki Kato | 2002-01-22 |