Granted Patent
Utility
US 6,816,930 · App. 09/426,942
Noise reducing method for radio portable terminal
Inventor:
Kenichi Yoshida
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Oct 25, 1999
Inventor
Kenichi Yoshida
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.