Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845700 | Front loading disc player | Toshiaki Koizumi, Masao Kase, Masakazu Yamashita, Kenji Tanaka, Ryo Matsuura | 1989-07-04 |
MO
Masatsugu Otaki
Overall (1989): #79,406 of 140,708Top 60%
1
Patents 1989