Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9204572 | Heat radiation arrangement | Hisao Takahashi, Satoru Anada | 2015-12-01 |
| 5878149 | Loudspeaker having a yoke, magnet, cylindrical throat, and spacer plate configuration | Hiroyuki Hamada, Yasushi Tanaka, Akira Tamadera | 1999-03-02 |