Granted Patent
Utility
US 6,720,615 · App. 10/115,997
Vertical-type MIS semiconductor device
Inventor:
Tatsuhiko Fujihira
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Apr 5, 2002
Inventor
Tatsuhiko Fujihira
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.