Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8259964 | Sound device | Masato Ueno, Masayuki Takagi | 2012-09-04 |
| 8175287 | Sound device | Masato Ueno, Masayuki Takagi | 2012-05-08 |
| 8077881 | Sound device | Masayuki Takagi, Masato Ueno | 2011-12-13 |
| 7915510 | Tuner for musical instruments and amplifier with tuner | Masato Ueno, Yoshinobu Morimoto | 2011-03-29 |
| 7912233 | Speaker system for musical instruments | Masayuki Takagi | 2011-03-22 |
| 7769192 | Speaker system with oscillation detection unit | Masayuki Takagi, Yoshihiro Ikegami | 2010-08-03 |
| 6956956 | Speaker installation and method | Tomoaki Kuratani | 2005-10-18 |