Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4949179 | Picture display device allowing separate selection and discerning of main and sub programs used for main-screen/sub-screen layout | — | 1990-08-14 |
| 4507694 | Selection/drive system for use in a tape recording/reproducing apparatus | Masayoshi Sakamoto, Shozo Ema | 1985-03-26 |