Granted Patent
Utility
US 6,043,526 · App. 08/995,841
Semiconductor memory cell using a ferroelectric thin film and a method for fabricating it
Inventor:
Akihiko Ochiai
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Dec 22, 1997
Inventor
Akihiko Ochiai
Assignee (at issue)
SONY GROUP 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.