Granted Patent
Utility
US 5,734,751 · App. 08/505,537
Ellipse-like curve recognition by calculation of distances of points on the curve from FOCI
Inventor:
Shigeru Saito
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Jul 21, 1995
Inventor
Shigeru Saito
Assignee (at issue)
NEC CORPORATION
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.