Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881142 | Magnetic disc unit employing temperature compensation | Masahiro Kato | 1989-11-14 |
YD
Yuichi Kakuta, deceased
Overall (1989): #39,690 of 140,708Top 30%
1
Patents 1989