Granted Patent
Utility
US 6,830,855 · App. 10/175,070
System and methods for producing a color filter
Inventors:
Hiroshi Kiguchi, Satoru Katagami, Tatsuya Ito, Hisashi Aruga
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Jun 20, 2002
Inventors
Hiroshi Kiguchi
Satoru Katagami
Tatsuya Ito
Hisashi Aruga
Assignee (at issue)
SEIKO EPSON 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.