Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888753 | Information recording medium capable of accurately detecting the recording and reproduction starting positions and an information recording-reproducing method and apparatus therefor | Masahiko Enari, Akio Aoki, Hiroshi Matsuoka, Kazuo Minoura | 1989-12-19 |
| 4870633 | Apparatus for reproducing information recorded on a recording medium | Akio Aoki, Kazuo Minoura | 1989-09-26 |
| 4832049 | Apparatus for detecting abnormality of the spinal column | Masahiro Watabe | 1989-05-23 |