Granted Patent
Utility
US 5,953,075 · App. 08/900,512
Video signal processing apparatus with means for magnifying and processing a picture image correspondingly to video signals
Inventors:
Tatsuo Nagata, Takaaki Matono, Takeshi Sakai, Ryo Hasegawa, Koichi Sudo
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jul 25, 1997
Inventors
Tatsuo Nagata
Takaaki Matono
Takeshi Sakai
Ryo Hasegawa
Koichi Sudo
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.