Granted Patent
Utility
US 5,326,792 · App. 07/980,164
Polyimide photosensitive cover coating agent
Inventors:
Yoshinori Masaki, Kouichi Kunimune, Hirotoshi Maeda
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Nov 23, 1992
Inventors
Yoshinori Masaki
Kouichi Kunimune
Hirotoshi Maeda
Assignee (at issue)
Chisso 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.