Granted Patent
Utility
US 5,788,914 · App. 08/721,022
Near infrared ray absorbing compound having high durability and its use
Inventors:
Ryu Oi, Kazuhiro Seino, Yuko Mochizuki, Keisuke Takuma
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 26, 1996
Inventors
Ryu Oi
Kazuhiro Seino
Yuko Mochizuki
Keisuke Takuma
Assignees (at issue)
MITSUI CHEMICALS, INC.
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.