Granted Patent
Utility
US 6,534,874 · App. 09/688,816
Semiconductor device and method of producing the same
Inventor:
Kazuhiko Matsumura
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Oct 17, 2000
Inventor
Kazuhiko Matsumura
Assignee (at issue)
Matsushita Electronics 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.