Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885777 | Electronic transaction system | Ryoichi Sasaki, Takayoshi Shiraishi, Nobuhiro Kurashiki | 1989-12-05 |
| 4885788 | IC card | Takayoshi Shiraishi, Ryoichi Sasaki | 1989-12-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885777 | Electronic transaction system | Ryoichi Sasaki, Takayoshi Shiraishi, Nobuhiro Kurashiki | 1989-12-05 |
| 4885788 | IC card | Takayoshi Shiraishi, Ryoichi Sasaki | 1989-12-05 |