Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516997 | User authentication system | Takashi Tanazawa, Yuuji Kobayashi, Isao Arai | 2003-02-11 |
| 5272321 | Automatic vending machine having a bar code reader and bar coded columns and switches | Hiromu Otsuka, Jun Ehara, Hirota Shinozaki | 1993-12-21 |