Granted Patent
Utility
US 6,653,778 · App. 09/667,094
Fluorescent color conversion film, fluorescent color conversion filter using the conversion film, and organic light-emitting device equipped with the conversion filter
Inventors:
Yoshimasa Tomiuchi, Yotaro Shiraishi
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Sep 21, 2000
Inventors
Yoshimasa Tomiuchi
Yotaro Shiraishi
Assignee (at issue)
FUJI ELECTRIC CO., LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.