Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9042593 | Sound playback device and electronic device using same | Tomoyuki Matsunaga, Kazuki Honda, Shigeru Tomoeda | 2015-05-26 |
| 9035513 | Vibrator and portable information terminal having the vibrator | Masato Funaki, Hiroki Kato | 2015-05-19 |
| 8682021 | Speaker unit and portable information terminal | Yuki Hatanaka | 2014-03-25 |
| 8155373 | Electroacoustic transducer | Yuki Hatanaka | 2012-04-10 |
| 7657053 | Speaker unit | — | 2010-02-02 |
| 7224817 | Loudspeaker | — | 2007-05-29 |