Granted Patent
Utility
US 6,768,689 · App. 10/428,586
Semiconductor memory device
Inventor:
Kenichi Origasa
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: May 1, 2003
Inventor
Kenichi Origasa
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.