Granted Patent
Utility
US 6,542,409 · App. 09/910,321
System for reference current tracking in a semiconductor device
Inventor:
Shigekazu Yamada
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jul 19, 2001
Inventor
Shigekazu Yamada
Assignee (at issue)
Fujitsu Limited
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.