Granted Patent
Utility
US 6,646,350 · App. 09/922,230
Semiconductor device
Inventors:
Naotaka Tanaka, Hideo Miura, Yoshiyuki Kado, Ikuo Yoshida, Takahiro Naito
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Aug 3, 2001
Inventors
Naotaka Tanaka
Hideo Miura
Yoshiyuki Kado
Ikuo Yoshida
Takahiro Naito
Assignee (at issue)
HITACHI, 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.