Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998174 | Floating type magnetic head assembly | Yoshiyo Wada, Yasuhiro Yamaguchi, Norio Onozato | 1991-03-05 |
| 4731680 | Disk drive with stored positioning data related to disk expansion | Keiichi Kaneko | 1988-03-15 |