Granted Patent
Utility
US 6,542,424 · App. 10/173,433
Semiconductor integrated circuit device using static memory cells with bit line pre-amplifier and main amplifier
Inventors:
Hitoshi Endo, Katsuhiko Wakasugi, Youichi Sato, Kazuyoshi Sato
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jun 18, 2002
Inventors
Hitoshi Endo
Katsuhiko Wakasugi
Youichi Sato
Kazuyoshi Sato
Assignees (at issue)
HITACHI, LTD.
Hitachi Ulsi Systems 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.