Granted Patent
Utility
US 6,638,808 · App. 10/353,722
Method of manufacturing gate driver with level shift circuit
Inventor:
Sam Seiichiro Ochi
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jan 28, 2003
Inventor
Sam Seiichiro Ochi
Assignee (at issue)
IXYS, LLC
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.