Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833549 | Digital audio tape record/play-back system for recording/playing back character data together with digital audio data | Kuniyoshi Otsuki | 1989-05-23 |
IY
Itsuro Yoshimoto
Overall (1989): #101,933 of 140,708Top 75%
1
Patents 1989