Granted Patent
Utility
US 5,321,096 · App. 08/035,043
Polyimide composition
Inventors:
Yuichi Okawa, Nobuhito Koga, Hideaki Oikawa, Tadashi Asanuma, Akihiro Yamaguchi
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Mar 22, 1993
Inventors
Yuichi Okawa
Nobuhito Koga
Hideaki Oikawa
Tadashi Asanuma
Akihiro Yamaguchi
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.