Granted Patent
Utility
US 5,796,539 · App. 08/678,068
Magnetic disk apparatus for a magnetic disk having projections provided thereon
Inventors:
Noriyoshi Goda, Fuminobu Maruyama, Masayuki Suzuki
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Jul 10, 1996
Inventors
Noriyoshi Goda
Fuminobu Maruyama
Masayuki Suzuki
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.