Granted Patent
Utility
US 6,130,845 · App. 09/161,954
Dynamic type semiconductor memory device having function of compensating for threshold value
Inventors:
Tetsuya Ootsuki, Isao Naritake
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Sep 29, 1998
Inventors
Tetsuya Ootsuki
Isao Naritake
Assignee (at issue)
NEC CORPORATION
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.