Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870521 | Floating magnetic head | — | 1989-09-26 |
YO
Yoshikatsu Okabayashi
Overall (1989): #40,489 of 140,708Top 30%
1
Patents 1989