Granted Patent
Utility
US 5,554,765 · App. 08/478,867
Bisimide compounds, polyimide resin composition prepared therefrom, and carbon fiber-reinforced polyimide resin composition
Inventors:
Masahiro Ohta, Akio Matsuyama, Eiji Senoue, Fumiaki Kuwano, Osamu Yasui, Yasunori Yoshida, Akinori Ryu, Tadashi Kobayashi
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Jun 7, 1995
Inventors
Masahiro Ohta
Akio Matsuyama
Eiji Senoue
Fumiaki Kuwano
Osamu Yasui
Yasunori Yoshida
Akinori Ryu
Tadashi Kobayashi
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.