Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5802469 | Radio communication system selectable low speed bi-directional communication and high-speed down link communication | Katsuya Nounin, Takashi Wakutsu, Nobuyasu Nakajima, Koji Ogura, Osamu Moriya +3 more | 1998-09-01 |
| 5754961 | Radio communication system including SDL having transmission rate of relatively high speed | Nobuyasu Nakajima, Koji Ogura, Minoru Namekata, Takashi Wakutsu, Manabu Mukai | 1998-05-19 |
| 5557647 | Baseband signal demodulator | Naohide Kushige, Naritoshi Saito | 1996-09-17 |
| 5528631 | .pi./4 shifted DQPSK modulator | Takahisa Hayashi, Tomohiro Matsuda | 1996-06-18 |
| 5450442 | Digital radio telephone apparatus having an equalizer selectively employed in the apparatus | Yuji Umemoto, Shinichi Suizu, Kaoru Tatsumi | 1995-09-12 |
| 5444736 | Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency | Kazuhiro Kawashima | 1995-08-22 |
| 5408698 | Radio tele-communication device having function of variably controlling received signal level | Kazuhiro Kawashima | 1995-04-18 |
| 5311523 | Carrier phase synchronous type maximum likelihood decoder | Junzo Murakami | 1994-05-10 |
| 5287388 | Frequency offset removal method and apparatus | Koji Ogura | 1994-02-15 |
| 5283531 | Demodulation apparatus incorporating adaptive equalizer for digital communication | Minoru Namekata, Koji Ogura, Katsumi Sakakibara | 1994-02-01 |
| 5274670 | Method of equalization in digital mobile communication with improved tracking ability | Minoru Namekata | 1993-12-28 |
| 5214391 | Demodulation apparatus having multipath detector for selecting a first or second demodulator | Minoru Namekata, Koji Ogura, Katsumi Sakakibara | 1993-05-25 |
| 5203027 | Diversity receiver for equalizing a data signal distorted in a signal transmission route | Katsuya Nounin, Katsumi Sakakibara, Koji Ogura | 1993-04-13 |
| 5159282 | Demodulation apparatus incorporating adaptive equalizer for digital communication | Minoru Namekata, Koji Ogura, Katsumi Sakakibara | 1992-10-27 |
| 4990867 | Modulator | Koji Ogura | 1991-02-05 |