Granted Patent
Utility
US 6,358,652 · App. 09/621,162
Fluorescent conversion filter and organic light-emitting device equipped with the fluorescent conversion filter
Inventors:
Yoshimasa Tomiuchi, Ryoji Kobayashi, Yotaro Shiraishi
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Jul 21, 2000
Inventors
Yoshimasa Tomiuchi
Ryoji Kobayashi
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.