Granted Patent
Utility
US 5,587,816 · App. 08/530,012
LCD device including an illumination device having a polarized light separating sheet between a light guide and the display
Inventors:
Tomoki Gunjima, Yoshiharu Ooi, Masao Ozeki, Hiroaki Ito, Hiroshi Hasebe, Tetsuro Matsumoto, Yutaka Nakagawa
Patented Case
View Patent ↗
Granted: Dec 24, 1996
Filed: Oct 19, 1995
Inventors
Tomoki Gunjima
Yoshiharu Ooi
Masao Ozeki
Hiroaki Ito
Hiroshi Hasebe
Tetsuro Matsumoto
Yutaka Nakagawa
Assignee (at issue)
ASAHI GLASS 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.