Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5003409 | Dual layered magnetic data card with reading and recording apparatus | Ginya Ishiguro, Hirokazu Uekusa | 1991-03-26 |
| 4977040 | Magnetic card | Ginya Ishiguro | 1990-12-11 |
| 4920441 | Flexible magnetic diskette | Takashi Kimura, Kenichi Chihara, Masahiro Tomatsu, Kazunobu Inoue, Osamu Adachi | 1990-04-24 |