Granted Patent
Utility
US 5,347,766 · App. 07/923,358
Method for polishing surface of transparent substrate layer of color filter unit
Inventors:
Kazuyoshi Komatsu, Osamu Narimatsu, Yasuo Takemura, Yoko Takeuchi, Susumu Waki
Patented Case
View Patent ↗
Granted: Sep 20, 1994
Filed: Jul 16, 1992
Inventors
Kazuyoshi Komatsu
Osamu Narimatsu
Yasuo Takemura
Yoko Takeuchi
Susumu Waki
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.