Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6144753 | Damper for a speaker apparatus | Takashi Ohyaba, Shunichi Takahashi, Showichiro Terauchi, Takanobu Saito, Yoshiya Usami +1 more | 2000-11-07 |
| 5848173 | Surroundless loudspeaker | Yoko Sato, Satoshi Kumada, Ziging Zhang, Junko Oba, Shinji Koyano +9 more | 1998-12-08 |