Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819097 | Audio signal recording/reproducing system for use in time-lapse video tape recorder | Masaru Takahashi, Akira Shibata, Katsumi Mikamo | 1989-04-04 |
| 4809096 | Tracking controlling device using multiple pilot signals in magnetic video signal recording and reproducing apparatus | Hikaru Masui, Yoshizumi Watatani | 1989-02-28 |