Granted Patent
Utility
US 6,005,291 · App. 09/138,011
Semiconductor device and process for production thereof
Inventors:
Kenichi Koyanagi, Kunihiro Fujii, Tatsuya Usami, Koji Kishimoto
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Aug 21, 1998
Inventors
Kenichi Koyanagi
Kunihiro Fujii
Tatsuya Usami
Koji Kishimoto
Assignee (at issue)
NEC 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.