Granted Patent
Utility
US 5,691,673 · App. 08/665,757
Semiconductor integrated circuit apparatus having input/output portions impedance-matched for transmission lines
Inventor:
Toru Ishikawa
Patented Case
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Granted: Nov 25, 1997
Filed: Jun 17, 1996
Inventor
Toru Ishikawa
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.