Granted Patent
Utility
US 5,705,101 · App. 08/572,893
Near infrared absorber, preparation process therefor and use thereof
Inventors:
Ryu Oi, Kazuhiro Seino, Keisuke Takuma
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Dec 18, 1995
Inventors
Ryu Oi
Kazuhiro Seino
Keisuke Takuma
Assignees (at issue)
Mitsui Toatsu Chemicals, Incorporated
YAMAMOTO CHEMICALS, INC.
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.