Granted Patent
Utility
US 6,519,409 · App. 09/158,083
Apparatus for recording a high quality signal
Inventor:
Kanju Ishii
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Sep 22, 1998
Inventor
Kanju Ishii
Assignee (at issue)
Victor Company of Japan, 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.