Granted Patent
Utility
US 6,556,479 · App. 10/198,996
Nonvolatile semiconductor memory device
Inventors:
Kiichi Makuta, Akihiro Fujita, Hideo Kasai, Masashii Wada, Atsushi Toukairin
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jul 22, 2002
Inventors
Kiichi Makuta
Akihiro Fujita
Hideo Kasai
Masashii Wada
Atsushi Toukairin
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.