Granted Patent
Utility
US 6,558,977 · App. 10/128,298
Semiconductor device and method for fabricating the same
Inventors:
Yukiko Nakaoka, Kazuhiko Matsumura, Hideyuki Kaneko, Koichi Nagao
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Apr 24, 2002
Inventors
Yukiko Nakaoka
Kazuhiko Matsumura
Hideyuki Kaneko
Koichi Nagao
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.