Granted Patent
Utility
US 5,698,467 · App. 08/742,811
Method of manufacturing an insulation layer having a flat surface
Inventors:
Masato Sakao, Yoshihiro Takaishi
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Nov 1, 1996
Inventors
Masato Sakao
Yoshihiro Takaishi
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.