Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12225361 | Sound signal processing device, sound system, and computer-implemented method | Toshifumi Kanno | 2025-02-11 |
| 10287159 | MEMS device | Junya Matsuoka, Yuki Ueya, Tsuyoshi Okami, Takashi Mizota | 2019-05-14 |
| 10175045 | Vibrator drive circuit | Hidekazu Ono, Tsuyoshi Okami, Takashi Mizota | 2019-01-08 |
| 9764943 | MEMS structure | Tsuyoshi Okami, Takashi Mizota, Yuki Ueya, Junya Matsuoka | 2017-09-19 |
| 8823343 | Power amplifying circuit, DC-DC converter, peak holding circuit, and output voltage control circuit including the peak holding circuit | — | 2014-09-02 |
| 8653803 | Voltage generation circuit | Norihiro Kawagishi, Toshio Maejima | 2014-02-18 |
| 8232832 | Voltage adder circuit and D/A converter circuit | Toshio Maejima | 2012-07-31 |
| 8059834 | Automatic gain control circuit | Yasuomi Tanaka, Hirotaka Kawai | 2011-11-15 |
| 7990211 | Class D amplifier circuit | Hirotaka Kawai, Yasuomi Tanaka | 2011-08-02 |
| 7982522 | Semiconductor integrated circuit for realizing an amplifier having ringing reduction circuitry | Hirotaka Kawai | 2011-07-19 |
| 7948313 | Class D amplifier circuit | Hirotaka Kawai | 2011-05-24 |
| 7924089 | Offset voltage correction circuit and class D amplifier | Yasuomi Tanaka, Hirotaka Kawai | 2011-04-12 |
| 7920082 | D/A converter circuit and digital input class-D amplifier | Hirotaka Kawai, Morito Morishima, Yohei Otani | 2011-04-05 |
| 7912112 | Spectrum spreading circuit | Hirotaka Kawai, Yasuomi Tanaka | 2011-03-22 |
| 7830182 | Comparator | Masaya Suzuki, Yasuomi Tanaka, Hirotaka Kawai | 2010-11-09 |
| 7816992 | Offset voltage correction circuit and class D amplifier | Yasuomi Tanaka, Hirotaka Kawai | 2010-10-19 |
| 7679435 | Digital input class-D amplifier | Hirotaka Kawai, Morito Morishima | 2010-03-16 |
| 7341819 | Method of manufacture of photosensitive material packaging body and photosensitive material packaging body | Katsunori Goi, Narito Goto, Tetsuo Shima, Hajime Kobayashi | 2008-03-11 |
| 7315202 | Pulse-width modulation amplifier and suppression of clipping therefor | — | 2008-01-01 |
| 7298855 | Volume circuit using resistive ladder circuits | Hisatoshi Uchida | 2007-11-20 |
| 7183818 | Triangular wave generating circuit adapted to class-D amplifier | — | 2007-02-27 |
| 7075123 | Semiconductor input protection circuit | Masao Noro, Terumitsu Maeno, Seiji Hirade | 2006-07-11 |
| 6903577 | Delay circuit | Masao Noro, Kunihiko Mitsuoka, Yasuhiko Sekimoto, Masamitsu Hirano | 2005-06-07 |
| 6903607 | Operational amplifier | Masao Noro, Kunihiko Mitsuoka | 2005-06-07 |
| 6894320 | Input protection circuit | Terumitsu Maeno | 2005-05-17 |