Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6786401 | Passing examination system & passing examination method | Atsushi Murakami, Yasuo Abuyama | 2004-09-07 |
| 4782397 | Image data processing apparatus with editing function | — | 1988-11-01 |
| 4695989 | Optical disc apparatus with selective track accessing using a correction scale value | — | 1987-09-22 |
| 4519056 | Optical disk apparatus | Atsushi Ishihara | 1985-05-21 |
| 4509154 | Optical disk apparatus | — | 1985-04-02 |
| 4485454 | Electronic document information filing system | — | 1984-11-27 |
| 4386374 | Electronic duplicator with a line buffer memory | — | 1983-05-31 |