Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202983 | File accessing system using code name to access selected conversion table for converting simplified file name into original file name | Keiichi Yasuda | 1993-04-13 |
| 5163147 | Computer system with file security function | — | 1992-11-10 |