Granted Patent
Utility
US 6,680,541 · App. 10/050,859
Semiconductor device and process for producing the same
Inventors:
Takeshi Furusawa, Daisuke Ryuzaki, Noriyuki Sakuma, Shuntaro Machida, Kenji Hinode, Ryou Yoneyama
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Jan 18, 2002
Inventors
Takeshi Furusawa
Daisuke Ryuzaki
Noriyuki Sakuma
Shuntaro Machida
Kenji Hinode
Ryou Yoneyama
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.