Granted Patent
Utility
US 6,236,248 · App. 09/425,806
Output buffer circuit
Inventor:
Hiroki Koga
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Oct 22, 1999
Inventor
Hiroki Koga
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.