Granted Patent
Utility
US 6,496,647 · App. 09/079,591
Video signal recording apparatus and method, video signal reproduction apparatus and method, video signal recording and reproduction apparatus and method, and recording medium
Inventors:
Naohisa Arai, Masami Tomita, Taro Suito
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: May 15, 1998
Inventors
Naohisa Arai
Masami Tomita
Taro Suito
Assignee (at issue)
SONY GROUP CORPORATION
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.