Granted Patent
Utility
US 6,790,974 · App. 10/389,787
Bis(aminostyryl) naphthalene compound, synthesis intermediate thereof, and process for production thereof
Inventors:
Mari Ichimura, Tadashi Ishibashi, Shinichiro Tamura
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Mar 17, 2003
Inventors
Mari Ichimura
Tadashi Ishibashi
Shinichiro Tamura
Assignee (at issue)
SONY GROUP 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.