Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817084 | Method for manufacturing a speaker apparatus | Takeshi Tokusho, Fumio Murayama | 2004-11-16 |
| 6814181 | Electrically conductive damper device for speaker | Koji Matsumoto, Koji Takayama, Hiroyuki Tomiyama | 2004-11-09 |
| 6788799 | Speaker device and associated method for manufacturing the speaker device | Toshihiro Ishigaki, Yoshitaka Kobayashi | 2004-09-07 |