Granted Patent
Utility
US 6,501,128 · App. 09/610,052
Insulated gate transistor and the method of manufacturing the same
Inventor:
Masahito Otsuki
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jul 5, 2000
Inventor
Masahito Otsuki
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.