Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657514 | Dielectric transmission line attenuator, dielectric transmission line terminator, and wireless communication device | Kei Matsutani, Atsushi Saito | 2003-12-02 |
| 6646516 | COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FILTER, DUPLEXER, COMMUNICATIONS DEVICE, CIRCUIT MODULE, COMPLEX CIRCUIT BOARD MANUFACTURING METHOD, AND NONRECIPROCAL CIRCUIT DEVICE MANUFACTURING METHOD | Yohei Ishikawa, Kei Matsutani | 2003-11-11 |
| 6583680 | Nonreciprocal circuit device and communications device | Katsuyuki Ohira | 2003-06-24 |