Granted Patent
Utility
US 6,827,770 · App. 10/172,927
Metal chelated dyestuff for inkjet recording, aqueous inkjet recording liquid comprising same and inkjet recording method using same
Inventors:
Tomohiro Chino, Masahiro Yamada, Hideo Sano, Wataru Shimizu, Yuukichi Murata
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Jun 18, 2002
Inventors
Tomohiro Chino
Masahiro Yamada
Hideo Sano
Wataru Shimizu
Yuukichi Murata
Assignee (at issue)
MITSUBISHI CHEMICAL 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.