Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814901 | Video cassette recorder for rental use which is rendered unusable after a predetermined period of time | Masami Onishi, Kazumi Murakami, Kiyoshi Yoshida | 1989-03-21 |
TM
Toshikazu Masumoto
Overall (1989): #48,625 of 140,708Top 35%
1
Patents 1989