Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640428 | Direct conversion receiver | Katsuaki Abe, Makoto Hasegawa, Kazunori Watanabe, Katsushi Yokozaki | 1997-06-17 |
| 5633898 | Automatic frequency control apparatus for FSK receiver and FSK receiver including the same | Takaaki Kishigami, Katsuaki Abe, Makoto Hasegawa, Katsushi Yokozaki | 1997-05-27 |
| 5617451 | Direct-conversion receiver for digital-modulation signal with signal strength detection | Makoto Hasegawa, Katsushi Yokozaki, Hiroyuki Harada, Takaaki Kishigami, Yasunari Tanaka | 1997-04-01 |
| 5606574 | Mobile unit identifying system and method of demodulating for the same | Makoto Hasegawa, Hirohide Hirabayashi, Naoki Adachi, Yasuaki Namura, Hideko Sakai | 1997-02-25 |