| 8135160 |
Speaker device and mobile phone |
Akihiko Furuto |
2012-03-13 |
| 8027502 |
Speaker device and mobile phone |
Shinsuke Konuma |
2011-09-27 |
| 8027503 |
Diaphragm for speaker device, speaker device and mobile phone |
Shinsuke Konuma, Akihiko Furuto |
2011-09-27 |
| 7433486 |
Speaker and manufacturing method for the same |
Takeshi Kaiwa, Satoshi Chiba |
2008-10-07 |
| 7103195 |
Speaker unit |
Tomohiro Kawata |
2006-09-05 |
| 6944310 |
Speaker apparatus |
Masanori Ito, Osamu Takahashi |
2005-09-13 |
| 6754362 |
Speaker and speaker system |
Takeshi Kaiwa, Osamu Takahashi, Masanori Ito |
2004-06-22 |
| 6154556 |
Dome speaker |
Osamu Takahashi |
2000-11-28 |
| 6030561 |
Methods for making a loudspeaker vibrating diaphragm |
Masatoshi Sato, Fumio Murayama, Jiro Nakazono |
2000-02-29 |
| 5892185 |
Speaker unit and a method for manufacturing the same |
Osamu Takahashi, Hideyuki Murakami |
1999-04-06 |
| 5793002 |
Loudspeaker vibrating diaphragm and methods for its production |
Masatoshi Sato, Fumio Murayama, Jiro Nakazono |
1998-08-11 |
| 5295195 |
Magnetic circuit in a loudspeaker |
Yutaka Moriyama |
1994-03-15 |
| 5270676 |
Method of making elements of a magnetic circuit in a loudspeaker |
Shuichi Watanabe, Masatoshi Sato |
1993-12-14 |
| 5157731 |
Dome radiator speaker |
— |
1992-10-20 |
| 5111510 |
Speaker and manufacturing method therefor |
— |
1992-05-05 |
| 5099949 |
Speaker and manufacturing method therefor |
— |
1992-03-31 |
