Granted Patent
Utility
US 5,757,576 · App. 08/681,660
Disk apparatus, and phase demodulating device and method for a disk apparatus
Inventor:
Tatsuhiko Kosugi
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jul 29, 1996
Inventor
Tatsuhiko Kosugi
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.