Granted Patent
Utility
US 6,388,713 · App. 09/114,967
Image display apparatus, and method to prevent or limit user adjustment of displayed image quality
Inventors:
Yukimi Saiki, Masahisa Tsukahara, Toshimitsu Watanabe, Kazuhiko YOSHIZAWA
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Jul 14, 1998
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.