Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102800 | Information storage medium and electronic device using the same | Atsushi Kitahara | 2000-08-15 |
| 6009523 | Information processing apparatus with security checking function | Takeshi Nagashima, Yukitoshi Kageyama | 1999-12-28 |
| 5745474 | Apparatus and method for reproducing data from disk, method for recording data on disk and disk | — | 1998-04-28 |
| 5688173 | Information storage medium and electronic device using the same | Atsushi Kitahara | 1997-11-18 |
| 5687161 | Apparatus and method for reproducing data from disk method for recording data on disk and disk | — | 1997-11-11 |
| 5627895 | Electronic device for detecting selected visually perceptible indication information on an information storage medium for security comparison | — | 1997-05-06 |
| 5460374 | Game device | — | 1995-10-24 |