Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5014258 | Disc player having means for preventing disc magazine from being inserted upsidedown | Kaoru Takemasa, Akira Takahashi, Masahiko Kawamura, Tokushige Kon | 1991-05-07 |