| 6688789 |
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
2004-02-10 |
| 6471887 |
Neodymium, ytterbium and/or erbium containing organic fluorescent compositions |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
2002-10-29 |
| 6458294 |
Fluorescent ink compositions |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
2002-10-01 |
| 6436314 |
Particulate fluorescent substance |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
2002-08-20 |
| 6303929 |
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
2001-10-16 |
| 5932139 |
Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader thereof |
Toshio Oshima, Yukinori Yamada, Shoji Saibara, Takanori Kamoto |
1999-08-03 |