Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005949 | Surround sound effect control device | Yoshikazu Shimizu | 1999-12-21 |
| 5173778 | Television receiver having simplified functional selection and functional adjustment control | Kazuyoshi Sasaki | 1992-12-22 |