Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807180 | Multiple control system for disk storage and method for realizing same | Hisaharu Takeuchi, Akira Kurano, Yoshiro Shiroyanagi, Katsunori Nakamura | 1989-02-21 |
| 4805048 | Method for controlling to keep off defects on magnetic disks | Hisaharu Takeuchi, Masahiro Nakayama, Yoshiro Shiroyanagi, Akira Kurano | 1989-02-14 |