Granted Patent
Utility
US 6,041,161 · App. 08/972,457
Input-output circuit, recording apparatus and reproduction apparatus for digital video signal
Inventors:
Hiroo Okamoto, Kyoichi Hosokawa, Hitoaki Owashi, Hiroaki Tachibana, Takaharu Noguchi
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Nov 18, 1997
Inventors
Hiroo Okamoto
Kyoichi Hosokawa
Hitoaki Owashi
Hiroaki Tachibana
Takaharu Noguchi
Assignee (at issue)
HITACHI, 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.