Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10367660 | Rate determination apparatus, rate determination method, and reception apparatus | Kichung Kim, Hiroyuki Okada, Tomoaki Hirota | 2019-07-30 |
| 10263654 | Radio receiver and intermediate frequency selection method | Hiroyuki Okada, Kichung Kim, Tomoaki Hirota, Takahiro Sato, Osamu Inagawa | 2019-04-16 |
| 9621116 | Active load circuit and semiconductor integrated circuit | Rui Ito | 2017-04-11 |
| 9281792 | Receiver and method for gain control | — | 2016-03-08 |
| 8478215 | Harmonic rejection mixer and phase adjustment method thereof | — | 2013-07-02 |
| 7898328 | Differential amplifier | — | 2011-03-01 |
| 7696789 | High-frequency signal detector | — | 2010-04-13 |
| 7649418 | Variable-gain amplifier | — | 2010-01-19 |
| 7456692 | Gain variable amplifier | Tatsuhiko Maruyama | 2008-11-25 |
| 6466067 | PLL circuit with shortened lock-up time | — | 2002-10-15 |
| 6300803 | Phase-comparison circuit | — | 2001-10-09 |