Granted Patent
Utility
US 6,580,592 · App. 09/834,882
Semiconductor device
Inventor:
Katsuhiro Kato
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Apr 16, 2001
Inventor
Katsuhiro Kato
Assignee (at issue)
OKI ELECTRIC INDUSTRY 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.