Granted Patent
Utility
US 6,541,125 · App. 10/001,995
Magnetic recording medium
Inventors:
Masaaki Futamoto, Nobuyuki Inaba, Yoshiyuki Hirayama, Teruaki Takeuchi, Yukio Honda
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Dec 5, 2001
Inventors
Masaaki Futamoto
Nobuyuki Inaba
Yoshiyuki Hirayama
Teruaki Takeuchi
Yukio Honda
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.