Granted Patent
Utility
US 6,399,423 · App. 09/733,929
Semiconductor device an a method of manufacturing the same
Inventors:
Takao Matsuura, Yoshihiko Yamaguchi, Shouichi Kobayashi, Kouji Tsuchiya
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Dec 12, 2000
Inventors
Takao Matsuura
Yoshihiko Yamaguchi
Shouichi Kobayashi
Kouji Tsuchiya
Assignees (at issue)
HITACHI, LTD.
Hitachi Yonezawa Electronics 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.