Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8165335 | Speaker and speaker unit | Koji Takayama, Hiroyuki Kobayashi | 2012-04-24 |
| 8045746 | Speaker device | Koji Takayama, Kazuki Yuze, Hiroyuki Kobayashi | 2011-10-25 |
| 8023680 | Mounting bracket and speaker unit | Hiroyuki Kobayashi, Koji Takayama | 2011-09-20 |
| 7704428 | Method for manufacturing diaphragm for use in electroacoustic transducer | Koji Takayama, Masatoshi Sato, Hiroyuki Kobayashi | 2010-04-27 |
| 7706560 | Speaker apparatus | Koji Takayama, Hiroyuki Kobayashi, Kazuki Yuze | 2010-04-27 |