Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6955241 | Speaker unit for low frequency reproduction | Glenn Cass, Tetsuya Oishi | 2005-10-18 |
| 6912290 | Speaker unit for low frequency reproduction | Glenn Cass, Tetsuya Oishi | 2005-06-28 |