Granted Patent
Utility
US 5,541,701 · App. 08/224,181
Eye direction detecting apparatus of camera view finder
Inventor:
Takayuki Sensui
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Apr 7, 1994
Inventor
Takayuki Sensui
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.