Granted Patent
Utility
US 5,280,442 · App. 07/781,630
Read-only memory
Inventors:
Yasuhiro Hotta, Mikiro Okada
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Oct 22, 1991
Inventors
Yasuhiro Hotta
Mikiro Okada
Assignee (at issue)
SHARP KABUSHIKI KAISHA
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.