Granted Patent
Utility
US 6,778,451 · App. 10/171,686
Semiconductor memory device for masking all bits in a test write operation
Inventors:
Yoshitaka Takahashi, Hitoshi Ikeda, Shinya Fujioka
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jun 17, 2002
Inventors
Yoshitaka Takahashi
Hitoshi Ikeda
Shinya Fujioka
Assignee (at issue)
Fujitsu Limited
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.