Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807281 | Loudspeaker and method of driving the same as well as audio signal transmitting/receiving apparatus | Toru Sasaki, Kaoru Gyotoku | 2004-10-19 |
| 6804367 | Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein | Tooru Sasaki, Akira Kimura, Takayuki Mizuuchi | 2004-10-12 |
| 6731764 | Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein | Tooru Sasaki, Akira Kimura, Takayuki Mizuuchi | 2004-05-04 |