Granted Patent
Utility
US 6,730,951 · App. 10/175,804
Capacitor, semiconductor memory device, and method for manufacturing the same
Inventors:
Yoshihisa Nagano, Eiji Fujii
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Jun 21, 2002
Inventors
Yoshihisa Nagano
Eiji Fujii
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.