Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12388445 | Level shift circuit | — | 2025-08-12 |
| 7671675 | Output limiting circuit, class D power amplifier and audio equipment | Koji Takahata, Yasunori Kimura | 2010-03-02 |
| 7657039 | Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same | Hiroyuki Saito | 2010-02-02 |
| 7466830 | Equalizing circuit amplifying bass range signal | — | 2008-12-16 |