Granted Patent
Utility
US 6,181,501 · App. 08/992,558
Information recording and reproducing apparatus having an improved high frequency characteristic for a reproduction signal
Inventor:
Yuichiro Yamazaki
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Dec 17, 1997
Inventor
Yuichiro Yamazaki
Assignee (at issue)
Fujitsu Limited
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.