Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9942638 | Composite electronic device, speaker cartridge, and electronic device | Tooru Takahashi | 2018-04-10 |
| 9883289 | Acoustic generator, acoustic generation device, and electronic device | Noriyuki Kushima, Takeshi Hirayama, Kenji Yamakawa, Hiroshi Ninomiya | 2018-01-30 |