Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663960 | Fluorescent particles, method for preparing the same and paper preventing forgery using the fluorescent particle | Toru Murakami, Tohru Nakajima, Yoshihiro Watanabe | 2003-12-16 |