Granted Patent
Utility
US 6,833,175 · App. 10/097,152
Glass substrate for magnetic recording medium, and magnetic recording medium
Inventors:
Susumu Yoshida, Hideyuki Akimoto, Masaya Suzuki
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Mar 13, 2002
Inventors
Susumu Yoshida
Hideyuki Akimoto
Masaya Suzuki
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.