Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875276 | Method of producing magnetic head device | Ryu Yunokuchi, Masao Ohkita | 1989-10-24 |
| 4851941 | Disk drive apparatus having fine adjustment structure for disk pressing pad | Masao Ohkita | 1989-07-25 |