Granted Patent
Utility
US 5,951,879 · App. 08/631,003
Method of etching polysilicon layer
Inventors:
Kyoko Miyamoto, Satoshi Nakagawa
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Apr 12, 1996
Inventors
Kyoko Miyamoto
Satoshi Nakagawa
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.