Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6590906 | Multi-carrier transmitter circuit and communication equipment | Kaoru Ishida, Hiroaki Kosugi, Shin'ichi Kugou | 2003-07-08 |
| 6563395 | Power splitter/combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Hiroaki Kosugi, Shin'ichi Kugou | 2003-05-13 |
| 6545542 | Power amplifier with coupler for cross-coupling amplifiers for reduction of differential frequency component | Toshimitsu Matsuyoshi, Kaoru Ishida, Seiji Fujiwara | 2003-04-08 |