Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691757 | Laser marking method and aqueous laser marking composition | Masaki Shinmoto | 1997-11-25 |
| 5608429 | Laser marking method, laser marking composition and articles having color developing layer made of said composition | Masaki Shinmoto | 1997-03-04 |