Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836551 | Loudspeaker | Mitsukazu Kuze, Shuji Saiki, Hiroyuki Takewa | 2004-12-28 |
| 6757404 | Loud speaker, diaphragm and process for making the diaphragm | Hiroyuki Takewa, Mikio Iwasa, Mitsukazu Kuze, Shinya Tabata, Shinya Mizone +5 more | 2004-06-29 |