Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835682 | Computer system for preventing copying of program from a storage medium by modifying the program using a unique key | Tadashi Kurachi | 1989-05-30 |
| 4402906 | Metallic material proof against attachment of marine organisms | Takashi Daikoku, Masato Zama, deceased, Shintaro Matsuo, Masahiro Saito, Hidejiro Kinoshita | 1983-09-06 |