Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6233288 | Spectrum analyzer | Takayoshi Fukui | 2001-05-15 |
| 6229316 | Measuring method by spectrum analyzer | Takayoshi Fukui, Kouichi Yamashita, Takahiro Yamaguchi, Osamu Aoyama, Takashi Kosuge +2 more | 2001-05-08 |
| 6191571 | Measuring method by spectrum analyzer | Takayoshi Fukui, Kouichi Yamashita, Takahiro Yamaguchi, Osamu Aoyama, Takashi Kosuge +2 more | 2001-02-20 |
| 5847559 | Spectrum Analyzer | Takayoshi Fukui | 1998-12-08 |
| 5818215 | Direct digital synthesizer driven phase lock loop spectrum analyzer | Yoshiaki Miyamae, Osamu Aoyama | 1998-10-06 |
| 5777464 | Spectrum analyzer | Shingo Hashida | 1998-07-07 |