Granted Patent
Utility
US 6,765,844 · App. 10/658,396
Semiconductor memory device having a hierarchical I/O structure
Inventors:
Hiroki Fujisawa, Shuichi Kubouchi, Koichiro Ninomiya
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Sep 10, 2003
Inventors
Hiroki Fujisawa
Shuichi Kubouchi
Koichiro Ninomiya
Assignees (at issue)
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.