Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11770142 | Wireless communication apparatus | — | 2023-09-26 |
| 10348260 | Amplifier circuit and filter | — | 2019-07-09 |
| 10050587 | Power amplifier circuit and semiconductor integrated circuit | Kouichi Kanda, Shiho Nakahara, Xiao Yan Wang, Xiongchuan Huang | 2018-08-14 |
| 9807689 | Communication device, method and communication system | Hiroyuki Sato | 2017-10-31 |
| 9614440 | Power supply device and semiconductor integrated circuit device | Eiji Yoshida, Yasufumi Sakai | 2017-04-04 |
| 9450549 | Differential amplification circuit | — | 2016-09-20 |
| 9270265 | Power on reset circuit, power supply circuit, and power supply system | Hiroyuki Nakamoto, Tomokazu Kojima | 2016-02-23 |
| 9225288 | Signal generation circuit | Masahiro Kudo, Kotaro Murakami | 2015-12-29 |
| 9099977 | Amplifier circuit | — | 2015-08-04 |
| 9007248 | MASH sigma-delta modulator and DA converter circuit | — | 2015-04-14 |
| 8938204 | Signal generator circuit and radio transmission and reception device including the same | — | 2015-01-20 |
| 8872582 | Amplifier circuit | — | 2014-10-28 |
| 8797111 | Poly-phase filter, and a single-side band mixer including the same | — | 2014-08-05 |
| 8604955 | Filter, and transmitter and receiver having the same | Shinji Yamaura | 2013-12-10 |
| 8482344 | Frequency-variable filter | — | 2013-07-09 |
| 8406357 | Filter circuit | Daisuke Yamazaki, Kazuhiko Kobayashi | 2013-03-26 |
| 8111096 | Variable gain amplifier circuit and filter circuit | — | 2012-02-07 |
| 8045949 | Noise cancellation circuit and amplifier with noise cancellation circuit | Shingo Sakamoto | 2011-10-25 |
| 7855601 | Semiconductor device | — | 2010-12-21 |
| 7835462 | Correction circuit | — | 2010-11-16 |
| 7746168 | Bias circuit | — | 2010-06-29 |
| 7679447 | Variable gain amplifier circuit and filter circuit | — | 2010-03-16 |
| 7667523 | Orthogonal signal output circuit | Nobuhiko Kobayashi, Masahiro Kudo | 2010-02-23 |
| 7633346 | Transconductance compensating bias circuit and amplifier | — | 2009-12-15 |
| 7629853 | Amplifying apparatus and bias stabilization circuit | — | 2009-12-08 |