Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7680294 | Acoustic transducer | Hiroo Kajiwara | 2010-03-16 |
| 7454031 | Multifunction speaker | Hiroo Kajiwara | 2008-11-18 |
| 7386138 | Multifunction speaker | Hiroo Kajiwara | 2008-06-10 |
| 7210213 | Method for manufacturing a dynamic speaker | Naoki Miura | 2007-05-01 |
| 7023112 | Vibrating device for axially vibrating a movable member | Kenshi Aihara, Naoki Miura | 2006-04-04 |
| 6783370 | Connecting member for a sound generator | Satoshi Hada | 2004-08-31 |
| 6751332 | Speaker | Takashi Kobayashi, Yoshizumi Ohta | 2004-06-15 |
| 6744895 | Loudspeaker | Masahito Furuya | 2004-06-01 |
| 6700251 | Vibrating device for axially vibrating a movable member | Takashi Kobayashi, Masaki Tohyama, Kenshi Aihara, Akira Nikaido, Naoki Miura | 2004-03-02 |
| 6690809 | Microspeaker | Yoshizumi Ohta, Takashi Kobayashi | 2004-02-10 |
| 6400825 | Microspeaker | Takashi Kobayashi, Yoshizumi Ohta | 2002-06-04 |