Granted Patent
Utility
US 6,717,352 · App. 10/119,368
Display device
Inventors:
Shigemi Hirasawa, Kenji Miyata, Tomio Yaguchi, Yuuichi Kijima, Hiroshi Kawasaki
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Apr 9, 2002
Inventors
Shigemi Hirasawa
Kenji Miyata
Tomio Yaguchi
Yuuichi Kijima
Hiroshi Kawasaki
Assignees (at issue)
HITACHI, LTD.
Hitachi Device Engineering Co., Ltd.
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.