Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851942 | Floating magnetic head having a magnetic core buried in a channel on an air bearing rail | Niroyuki Kumasaka, Shigekazu Otomo, Noritoshi Saito, Yokuo Saitoh, Hiroshi Sakurai | 1989-07-25 |
| 4847715 | Magnetic head having short distance between gaps for recording reproducing and erasing | Noriyuki Kumasaka, Shigekazu Otomo, Noritoshi Saito | 1989-07-11 |
| 4803338 | Magnetic head having improved track width narrowing grooves | Noriyuki Kumasaka, Shigekazu Otomo, Hideo Zama, Juichi Morikawa | 1989-02-07 |