Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343055 | Apparatus for and method of reproducing music together with information representing beat of music | Shozo Ema, Hidehiro Ishii, Takao Sawabe, Kaoru Yamamoto, Hirokazu Inotani +2 more | 2002-01-29 |
| 6272082 | Audio information recording medium and audio information reproducing apparatus | Hidehiro Ishii, Takao Sawabe, Shozo Ema, Kaoru Yamamoto, Tokihiro Takahashi | 2001-08-07 |
| 6094638 | Audio signal processing apparatus and audio signal processing method for multi channel audio reproduction system | Shozo Ema, Hirokazu Inotani, Takao Sawabe, Hidehiro Ishii, Kaoru Yamamoto +1 more | 2000-07-25 |
| 4931796 | Digital-to-analog conversion circuit | Kiyofumi Hirai | 1990-06-05 |