Granted Patent
Utility
US 4,472,792 · App. 06/377,958
Semiconductor memory
Inventors:
Katsuhiro Shimohigashi, Hiroo Masuda, Kunihiko Ikuzaki, Hiroshi Kawamoto
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: May 13, 1982
Inventors
Katsuhiro Shimohigashi
Hiroo Masuda
Kunihiko Ikuzaki
Hiroshi Kawamoto
Assignee (at issue)
HITACHI, 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.