Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10805732 | Diaphragm or dust cap and speaker unit | Takeru Inoue, Hajime Yoshimura, Sadatoshi Hisamoto | 2020-10-13 |
| 9818395 | Acoustic diaphragm | Takaya Fujii | 2017-11-14 |
| 8131001 | Speaker diaphragm and electrodynamic loudspeaker using the same | Kenichiro Toyofuku, Taihei OKADA | 2012-03-06 |
| 7864977 | Voice coil assembly and loudspeaker using the same | Koichi Sadaie, Yoshihide Toyoshima | 2011-01-04 |
| 7848536 | Voice coil assembly, loudspeaker using the same, and method for producing the same | Koichi Sadaie, Yoshihide Toyoshima, Satofumi Nagaoka, Yoshinori Ujimoto, Kouichi Abe | 2010-12-07 |
| 7344001 | Speaker diaphragm and speaker structure | Toshihide Inoue | 2008-03-18 |
| 6378649 | Speaker member and manufacturing method thereof | Toshihide Inoue, Yushi Ono, Takashi Onogi, Kazumasa Takemura | 2002-04-30 |