Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10923962 | Power transmission device non-contact power feeding system with detection circuit to detect current amplitude in transmission-side coil | Yoshihiro Ikefuji, Akihiro Okui | 2021-02-16 |
| 7333155 | Quadratic video demodulation with baseband nyquist filter | Takatsugu Kamata | 2008-02-19 |
| 7327406 | Methods and apparatus for implementing a receiver on a monolithic integrated circuit | Takatsugu Kamata | 2008-02-05 |
| 7199844 | Quadratic nyquist slope filter | Takatsugu Kamata | 2007-04-03 |
| 7116961 | Image rejection quadratic filter | Takatsugu Kamata | 2006-10-03 |
| 7102465 | Frequency discrete LC filter bank | Takatsugu Kamata | 2006-09-05 |
| 6882245 | Frequency discrete LC filter bank | Takatsugu Kamata | 2005-04-19 |
| 6750734 | Methods and apparatus for tuning an LC filter | Takatsugu Kamata | 2004-06-15 |
| 4395778 | Undesired signal canceller | Yasuo Osada, Takeo Nakagawa | 1983-07-26 |
| 4357631 | Ghost cancelling system | Hisafumi Yamada, Choei Kuriki | 1982-11-02 |
| 4344089 | Ghost cancelling system | Hisafumi Yamada, Choei Kuriki | 1982-08-10 |