Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8796903 | Piezoelectric vibrator driving circuit | Hirohiko Yoshioka, Daisuke Takahata, Fumiaki Honda, Kazuyuki Ueda | 2014-08-05 |
| 6198586 | Voice recording/playback apparatus for producing a noise level of a voice output unit in a voice recording mode | Seiji Takamatsu | 2001-03-06 |
| 6051960 | Switching regulator with reduced power consumption | Takashi Ito | 2000-04-18 |
| 5990644 | Motor drive circuit | Kazuhito Matsuura | 1999-11-23 |
| 5900786 | Oscillation circuit | Takashi Ito | 1999-05-04 |
| 5874858 | Amplifier system having a constant current regulating unit | — | 1999-02-23 |
| 5869989 | Amplifying electronic circuit with stable idling current | Seiji Takamatu | 1999-02-09 |
| 5640090 | Sensor IC | Hirohiko Urushiyama, Atsushi Watanabe, Katsuaki Yano | 1997-06-17 |
| 5506441 | Semiconductor device having pair of transistors | — | 1996-04-09 |