Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498929 | Receiver having DC offset decreasing function and communication system using the same | Hiroshi Tsurumi, Hiroshi Yoshida, Tetsuro Itakura, Takafumi Yamaji, Akira Yasuda +3 more | 2002-12-24 |
| 6477360 | Frequency converter | Osamu Watanabe, Takafumi Yamaji, Shoji Otaka | 2002-11-05 |
| 6381449 | Frequency converter | Takafumi Yamaji, Tetsuro Itakura | 2002-04-30 |
| 6346804 | Impedance conversion circuit | Takashi Ueno, Tetsuro Itakura | 2002-02-12 |