Granted Patent
Utility
US 5,312,866 · App. 07/883,267
Polyimide based resin composition
Inventors:
Toshihiko Tsutsumi, Toshiyuki Nakakura, Shuichi Morikawa, Katsunori Shimamura, Toshiaki Takahashi, Atsushi Morita, Nobuhito Koga, Akihiro Yamaguchi, Masahiro Ohta, Yoshihisa Gotoh, Masaki Amano, Hiroyasu Oochi, Kayako Ito
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: May 14, 1992
Inventors
Toshihiko Tsutsumi
Toshiyuki Nakakura
Shuichi Morikawa
Katsunori Shimamura
Toshiaki Takahashi
Atsushi Morita
Nobuhito Koga
Akihiro Yamaguchi
Masahiro Ohta
Yoshihisa Gotoh
Masaki Amano
Hiroyasu Oochi
Kayako Ito
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.