Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6938209 | Audio information provision system | Ryosuke Kobayashi, Akihisa Kawamura, Toshihiko Date | 2005-08-30 |
| 6673995 | Musical signal processing apparatus | Ryosuke Kobayashi, Tomomi Hirata, Toshihiko Date | 2004-01-06 |
| 6605768 | Music-signal compressing/decompressing apparatus | Toshihiko Date, Ryousuke Kobayashi, Tomomi Hirata | 2003-08-12 |
| 5742688 | Sound field controller and control method | Akihisa Kawamura, Masaharu Matsumoto, Toshihiko Date, Tadashi Tamura, Yasutoshi Nakama | 1998-04-21 |
| 4924962 | Sound reproducing apparatus for use in vehicle | Kenichi Terai, Shuji Saiki, Kousaku Murata, Katsuaki Satoh, Yoichi Kumura +2 more | 1990-05-15 |