Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10480222 | Door latching device and moving body mounted with same | HISAO HIRAGI | 2019-11-19 |
| 9699535 | Sounding body and audio reproduction device using same, and mobile device | — | 2017-07-04 |
| 8824725 | Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method | — | 2014-09-02 |
| 8355523 | Speaker | — | 2013-01-15 |
| 8351642 | Speaker | — | 2013-01-08 |
| 8249290 | Speaker | — | 2012-08-21 |
| 8094862 | Speaker | — | 2012-01-10 |
| 8085970 | Speaker damper and speaker using the same | — | 2011-12-27 |
| 8081791 | Loudspeaker | — | 2011-12-20 |
| 8041068 | Loudspeaker | — | 2011-10-18 |
| 8041069 | Loudspeaker | Hiroyuki Morimoto, Yukio Okamoto | 2011-10-18 |
| 8009856 | Speaker | — | 2011-08-30 |
| 8005253 | Speaker | — | 2011-08-23 |
| 8002079 | Diaphragm for speaker, speaker using the diaphragm for speaker, and process for producing the diaphragm for speaker | — | 2011-08-23 |
| 7995788 | Loudspeaker | Hiroyuki Morimoto, Kazuyoshi Umemura | 2011-08-09 |
| 7974434 | Loudspeaker | — | 2011-07-05 |
| 7929724 | Loudspeaker | — | 2011-04-19 |
| 7844071 | Loudspeaker | Seiichi Yoshida, Kimihiro Ando, Kazuyoshi Umemura | 2010-11-30 |
| 7822222 | Loudspeaker and method of manufacturing the same | — | 2010-10-26 |
| 7627133 | Diaphragm and loudspeaker using same | — | 2009-12-01 |
| 7574013 | Speaker | Seiichi Yoshida, Kimihiro Ando, Kazuyoshi Umemura, Yoichi Asahi | 2009-08-11 |
| 7542583 | Loudspeaker | — | 2009-06-02 |
| 7539323 | Speaker | Seiichi Yoshida | 2009-05-26 |
| 7532736 | Speaker | — | 2009-05-12 |
| 7443996 | Loudspeaker | Hiroyuki Morimoto, Yukio Okamoto | 2008-10-28 |