Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619220 | Sound image display method and apparatus | Hiroyuki Tomita, Toru Furuse, Akihiro Masukawa | 1997-04-08 |
| 5272756 | Method and apparatus for determining phase correlation of a stereophonic signal | Naojiro Tanaka | 1993-12-21 |