Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813317 | Multicarrier transmitting method and multicarrier transmitter circuit | Kaoru Ishida | 2004-11-02 |
| 6803837 | Power splitter/combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi | 2004-10-12 |
| 6690249 | Power splitter/combiner multi-layer circuit | Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi | 2004-02-10 |
| 6590906 | Multi-carrier transmitter circuit and communication equipment | Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi | 2003-07-08 |
| 6563395 | Power splitter/combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi | 2003-05-13 |
| 6326845 | Feedforward amplifier | Masayuki Miyaji, Kaoru Ishida, Hiroaki Kosugi | 2001-12-04 |
| 6300848 | Power splitter and power combiner using N-branch-line-shaped directional couplers | Masayuki Miyaji, Kaoru Ishida, Hiroaki Kosugi | 2001-10-09 |
| 6201439 | Power splitter/ combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Hiroaki Kosugi | 2001-03-13 |
| 6037837 | Feed forward amplifier | Masayuki Miyaji, Kaoru Ishida, Hiroaki Kosugi | 2000-03-14 |