Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10367459 | Class-D amplifier circuit | — | 2019-07-30 |
| 6792121 | Audio signal amplifier circuit and portable telephone set and portable electronic device using the same audio signal amplifier circuit | Masanori Fujisawa | 2004-09-14 |