Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7200239 | Acoustic apparatus having balance adjustment | Kazuo Yabe, Takahiro Ushiba | 2007-04-03 |
| 6657317 | Electronic device with erroneous operation button state judging | Kazuo Yabe | 2003-12-02 |