Granted Patent
Utility
US 6,171,676 · App. 08/800,916
Magnetic recording medium containing fine magnetic crystal grains and its manufacture
Inventors:
Ryoichi Mukai, Kazunori Yamanaka, Kazuo Kobayashi
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Feb 13, 1997
Inventors
Ryoichi Mukai
Kazunori Yamanaka
Kazuo Kobayashi
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.