Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9332342 | Microphone amplifier circuit | Akio Watanabe | 2016-05-03 |
| 8600079 | Amplifier circuit of capacitor microphone | Yasuyuki Kimura, Takashi Tokano | 2013-12-03 |
| 8159292 | Amplifying circuit | — | 2012-04-17 |
| 5450037 | Power supplying circuit for supplying a voltage to a driving circuit | Takeshi Suzuki, Masakazu Ueno, Takahisa Makino, Yukinao Sakuma | 1995-09-12 |
| D345963 | Hybrid integrated circuit | Masakazu Ueno, Kenichi Kobayashi | 1994-04-12 |