Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7742607 | Method for designing a modal equalizer for a low frequency sound reproduction | Matti Karjalainen, Aki Mäkivirta, Vesa Valimaki | 2010-06-22 |
| 7286674 | Method for designing a modal equalizer for a low frequency audible range especially for closely positioned modes | Matti Karjalainen, Vesa Valimaki, Aki Mäkivirta | 2007-10-23 |