Granted Patent
Utility
US 6,765,815 · App. 10/447,893
Semiconductor memory device having a main word-line layer disposed above a column selection line layer
Inventors:
Hiroki Fujisawa, Koji Arai, Chiaki Dono
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: May 29, 2003
Inventors
Hiroki Fujisawa
Koji Arai
Chiaki Dono
Assignees (at issue)
ELPIDA MEMORY, INC.
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.