Granted Patent
Utility
US 5,489,874 · App. 08/457,265
Inverting amplifier having negative-resistance circuit
Inventor:
Satoru Tanoi
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Jun 1, 1995
Inventor
Satoru Tanoi
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.