Granted Patent
Utility
US 6,828,612 · App. 10/388,639
Semiconductor memory device
Inventors:
Shinichi Miyatake, Kazuhiko Kajigaya, Kazuyuki Miyazawa, Tomonori Sekiguchi, Riichiro Takemura, Takeshi Sakata
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Mar 17, 2003
Inventors
Shinichi Miyatake
Kazuhiko Kajigaya
Kazuyuki Miyazawa
Tomonori Sekiguchi
Riichiro Takemura
Takeshi Sakata
Assignees (at issue)
HITACHI, LTD.
Hitachi Ulsi Systems Co., Ltd.
ELPIDA MEMORY, INC.
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.