Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442451 | Helical scan recording/reproducing device for simultaneously helically recording/reproducing both video and audio signals | — | 1995-08-15 |
| 5068752 | Apparatus for recording/reproducing a digital audio signal with a video signal | Hiroshi Tanaka, Tetsuo Ishiwata, Hitoshi Komae, Susumu Yamaguchi, Tadashi Yoshino +1 more | 1991-11-26 |
| 4901159 | Magnetic recording apparatus for recording video and two kinds of audio signals | — | 1990-02-13 |
| 4648118 | Apparatus for reducing noise in audio signals | — | 1987-03-03 |