Granted Patent
Utility
US 6,521,969 · App. 09/685,896
Semiconductor device and method of producing the same
Inventor:
Kazuo Tomita
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Oct 11, 2000
Inventor
Kazuo Tomita
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.