Granted Patent
Utility
US 5,804,102 · App. 08/768,327
Plasma display filter
Inventors:
Ryu Oi, Kazuhiro Seino, Yoriaki Matsuzaki, Yuko Mochizuki, Keisuke Takuma, Shin Fukuda, Yojiro Kumagae
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Dec 17, 1996
Inventors
Ryu Oi
Kazuhiro Seino
Yoriaki Matsuzaki
Yuko Mochizuki
Keisuke Takuma
Shin Fukuda
Yojiro Kumagae
Assignees (at issue)
MITSUI CHEMICALS, INC.
YAMAMOTO CHEMICALS, INC.
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.