Issued Patents 2005
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977541 | Variable time constant circuit and filter circuit using the same | Daisuke Kurose, Rui Ito | 2005-12-20 |
| 6975171 | Balanced amplifier and filter using the same | Takeshi Ueno, Zdzislaw Czarnul | 2005-12-13 |
| 6954089 | Frequency converter having low supply voltage | Toshiyuki Umeda, Shoji Otaka | 2005-10-11 |
| 6930532 | Exponential conversion circuit and variable gain circuit | Nobuo Kanou, Takafumi Yamaji | 2005-08-16 |
| 6919768 | Balanced amplifier and filter using the same | Zdzislaw Czarnul, Takeshi Ueno | 2005-07-19 |
| 6909323 | Variable gain amplifier | Takashi Ueno, Tadashi Arai | 2005-06-21 |
| 6876256 | Balanced amplifier and filter using the same | Zdzislaw Czarnul, Takeshi Ueno | 2005-04-05 |