Granted Patent
Utility
US 6,556,074 · App. 10/127,877
Differential amplifying circuit and multi-stage differential amplifying circuit using the same
Inventor:
Yasufumi Suzuki
Patented Case
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Granted: Apr 29, 2003
Filed: Apr 23, 2002
Inventor
Yasufumi Suzuki
Assignee (at issue)
NEC Electronics 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.