Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8615102 | Speaker unit and portable information terminal | — | 2013-12-24 |
| 8565471 | Speaker unit and portable information terminal | — | 2013-10-22 |
| 7548766 | Flat type speaker unit, and electronic appliance having this unit | Yuki Takahata, Minoru Kumita | 2009-06-16 |