Granted Patent
Utility
US 5,866,484 · App. 08/888,125
Semiconductor device and process of producing same
Inventor:
Yoshio Muto
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jul 3, 1997
Inventor
Yoshio Muto
Assignee (at issue)
NIPPON STEEL 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.