Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12200434 | Directive multiway loudspeaker with a waveguide | Juha Holm | 2025-01-14 |
| 11026017 | Directive multiway loudspeaker with a waveguide | Aki Mäkivirta, Juha Holm, Siamak Naghian, Ilpo Martikainen | 2021-06-01 |
| 10638230 | Diaphragm assembly, transducer and method of manufacture | — | 2020-04-28 |
| 10491992 | Loudspeaker with a waveguide | Ilpo Martikainen, Jaakko Nisula, Stephen Millar | 2019-11-26 |
| D850420 | Loudspeaker base | Harri Koskinen, Ilpo Martikainen, Jaakko Nisula | 2019-06-04 |
| D820236 | Loudspeaker | Harri Koskinen, Ilpo Martikainen, Jaakko Nisula | 2018-06-12 |
| 9838793 | Suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof as well as driver and loudspeaker comprising the same | Stephen Millar, Jaakko Nisula, Ilpo Martikainen | 2017-12-05 |
| D794605 | Loudspeaker | Harri Koskinen, Ilpo Martikainen, Jaakko Nisula | 2017-08-15 |
| 9462373 | Loudspeaker and manufacturing method thereof | Markku Kulomäki, Siamak Naghian, Ilpo Martikainen, Harri Koskinen | 2016-10-04 |
| 9071908 | Loudspeaker with a wave guide | Ilpo Martikainen | 2015-06-30 |
| 9020178 | Drive unit mounting arrangement and loudspeaker | Ilpo Martikainen, Markku Kulomäki, Aki Mäkivirta, Noa Eskelinen, Jari Makinen +1 more | 2015-04-28 |