Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5986565 | Individual recognition system | — | 1999-11-16 |
| 5921585 | Blockade seal | Takao Tanaka | 1999-07-13 |
| 5426520 | Method of legitimate product identification and seals and identification apparatus | Hayao Kakae | 1995-06-20 |