Granted Patent
Utility
US 6,807,112 · App. 10/667,455
Mask programmable read only memory
Inventor:
Mitsuaki Hayashi
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Sep 23, 2003
Inventor
Mitsuaki Hayashi
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.