Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6688789 | Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor | Toshio Oshima, Yukinori Yamada, Takanori Kamoto, Tomio Nabeshima | 2004-02-10 |