Granted Patent
Utility
US 4,841,177 · App. 07/141,873
Comparator circuit operable for a wide range of input signal
Inventors:
Takahiro Sugiyama, Mitsutoshi Sugawara
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Jan 6, 1988
Inventors
Takahiro Sugiyama
Mitsutoshi Sugawara
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.