Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693883 | TDMA radio terminal capable of adjusting transmit timing by using measured delay time | Makoto Hasegawa, Kenichi Takahashi | 2004-02-17 |
| 6693889 | Transmission and reception system, transmission and reception device, and method of transmission and reception | Makoto Hasegawa, Naoyuki Yamamoto | 2004-02-17 |
| 6693977 | Portable radio device with direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal | Hiroshi Katayama, Yasumi Imagawa | 2004-02-17 |