Granted Patent
Utility
US 6,507,111 · App. 09/842,243
High-frequency circuit and its module for communication devices
Inventor:
Junichi Shimizu
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Apr 25, 2001
Inventor
Junichi Shimizu
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.