Granted Patent
Utility
US 5,578,419 · App. 08/223,605
Dyes for color filters, and photosensitive resist resin composition containing the same
Inventors:
Hisato Itoh, Akio Karasawa, Kenichi Sugimoto
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Apr 6, 1994
Inventors
Hisato Itoh
Akio Karasawa
Kenichi Sugimoto
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.