Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686725 | Method for reading of invisible marking | Tsutomu Maruyama, Atsushi Akiyama, Hiroyasu Matsuki, Kazuo Sanada, Sadao Chigira | 1997-11-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686725 | Method for reading of invisible marking | Tsutomu Maruyama, Atsushi Akiyama, Hiroyasu Matsuki, Kazuo Sanada, Sadao Chigira | 1997-11-11 |