Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243485 | Tape reel assembly for electrically encoding tape relative position information | — | 1993-09-07 |
| 5130879 | Video cassette which indicates number of times played | — | 1992-07-14 |
| 5050031 | Video cassette rental system and method and record playback counter therefor | — | 1991-09-17 |
| 5029034 | Video cassette with optical output of information | — | 1991-07-02 |