Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272581 | Disk-type recording medium and storage apparatus | Shyuichi Kojima, Hiroyuki Suzuki, Akira Kato, Mikio Takada, Masaki Ohura | 1993-12-21 |
| 4721646 | Magnetic recording medium | Fuzio Maeda, Masa-aki Imamura, Yoshiki Kato, Eiichi Takasuna, Youichi Kawakubo | 1988-01-26 |