Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833550 | Magnetic disk device having a mechanism for removing an adhesion between a magnetic head and a magnetic disk | Toshimitsu Takizawa | 1989-05-23 |
| 4815099 | Data circuit-terminating equipment | Toshimichi Shimatani, Masayuki Kawashima, Hideharu Omori | 1989-03-21 |