Granted Patent
Utility
US 6,430,307 · App. 09/290,256
Feature extraction system and face image recognition system
Inventors:
Masaki Souma, Kenji Nagao
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Apr 13, 1999
Inventors
Masaki Souma
Kenji Nagao
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.