Granted Patent
Utility
US 6,798,460 · App. 10/367,686
High definition display unit and high definition display method
Inventors:
Yukimi Saiki, Masahisa Tsukahara, Toshimitsu Watanabe, Kazuhiko YOSHIZAWA
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Feb 19, 2003
Inventors
Yukimi Saiki
Masahisa Tsukahara
Toshimitsu Watanabe
Kazuhiko YOSHIZAWA
Assignees (at issue)
HITACHI, LTD.
Hitachi Video and Information Systems, Inc.
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.