Granted Patent
Utility
US 5,504,818 · App. 08/315,846
Information processing system using error-correcting codes and cryptography
Inventor:
Hirokazu Okano
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Sep 30, 1994
Inventor
Hirokazu Okano
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.