Granted Patent
Utility
US 6,600,870 · App. 09/455,413
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: Jul 29, 2003
Filed: Dec 6, 1999
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.