Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8131001 | Speaker diaphragm and electrodynamic loudspeaker using the same | Hiroyasu Kumo, Taihei OKADA | 2012-03-06 |
| 7021419 | Speaker system | Koichi Sadaie | 2006-04-04 |
| 6798891 | Speaker system | Koichi Sadaie | 2004-09-28 |
| 6504934 | Apparatus and method for localizing sound image | Joji Kasai, Koichi Sadaie, Kazumasa Takemura, Tetsuro Nakatake | 2003-01-07 |
| 6067360 | Apparatus for localizing a sound image and a method for localizing the same | Joji Kasai, Kazumasa Takemura, Tetsuro Nakatake, Koichi Sadaie | 2000-05-23 |