Granted Patent
Utility
US 6,628,357 · App. 09/402,557
Liquid crystal device and electronic device
Inventors:
Tsuyoshi Maeda, Eiji Okamoto, Takumi Seki, Osamu Okumura
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Oct 4, 1999
Inventors
Tsuyoshi Maeda
Eiji Okamoto
Takumi Seki
Osamu Okumura
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.