Granted Patent
Utility
US 5,521,421 · App. 08/294,637
Semiconductor device
Inventor:
Shoichi Furuhata
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Aug 23, 1994
Inventor
Shoichi Furuhata
Assignee (at issue)
FUJI ELECTRIC CO., 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.