Granted Patent
Utility
US 6,129,981 · App. 09/187,082
Magnetic recording medium and magnetic recording disk device
Inventors:
Chiaki Okuyama, Kenji Sato, Yuki Yoshida, Iwao Okamoto
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Nov 6, 1998
Inventors
Chiaki Okuyama
Kenji Sato
Yuki Yoshida
Iwao Okamoto
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.