Granted Patent
Utility
US 6,756,621 · App. 10/330,160
Ferroelectric capacitor device
Inventors:
Toru Nasu, Shinichiro Hayashi
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Dec 30, 2002
Inventors
Toru Nasu
Shinichiro Hayashi
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.