Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665414 | Speaker system and cooling device therefor | Fumio Murayama, Takashi Suzuki | 2003-12-16 |
| 6604271 | Process for processing a conductive damper for use in speaker | Toshihiro Ishigaki | 2003-08-12 |