Granted Patent
Utility
US 6,133,770 · App. 09/203,179
Phase locked loop circuit
Inventor:
Atsushi Hasegawa
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Nov 30, 1998
Inventor
Atsushi 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.