Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812920 | Wide band video signal recording apparatus | Hisashi Ishikawa, Susumu Kozuki, Katsuji Yoshimura, Koji Takahashi, Kenichi Nagasawa | 1989-03-14 |
YN
Yoshitake Nagashima
Overall (1989): #40,668 of 140,708Top 30%
1
Patents 1989