Granted Patent
Utility
US 5,319,264 · App. 08/097,731
Logarithmic amplifying circuit
Inventor:
Katsuji Kimura
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Jul 27, 1993
Inventor
Katsuji Kimura
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.