Granted Patent
Utility
US 6,351,301 · App. 09/612,657
Smectic liquid crystal which enables grayscale display, and liquid crystal using the same
Inventor:
Kenichi Takatori
Patented Case
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Granted: Feb 26, 2002
Filed: Jul 7, 2000
Inventor
Kenichi Takatori
Assignee (at issue)
NEC 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.