Granted Patent
Utility
US 6,718,295 · App. 09/186,439
Speech band division decoder
Inventor:
Satoshi Hasegawa
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Nov 5, 1998
Inventor
Satoshi Hasegawa
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.