Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304941 | Compact disc player | Masafumi Ito, Sigeru Hasegawa, Minoru Sube | 1989-12-05 |
| D304829 | Combined compact disc player and tape recorder | Masafumi Ito, Sigeru Hasegawa, Minoru Sube | 1989-11-28 |