Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084859 | Multi-magazine disc player | Masaya Ishibashi, Yoshitaka Nojima, Takeo Tobe | 1992-01-28 |
| 4849827 | Disk and navigation apparatus for position locating system | Tetsuo Harayama | 1989-07-18 |